How to measure a latent construct: Psychometric principles for the development and validation of measurement instruments

Development and validation of measures of pharmacists' acceptability and willingness to screen for perinatal depression

BACKGROUND

While pharmacists' roles in mental healthcare are expanding, research exploring pharmacists' acceptability and willingness to provide mental health services is limited. This study developed and validated theory-driven measures of pharmacists' acceptability and willingness to screen for perinatal depression in community pharmacy settings.

MATERIALS/METHODS

Items were developed using published literature and the Theoretical Framework of Acceptability (TFA), then content validated using consensus methods with experts who completed the content validity index (CVI). The revised items were disseminated to pharmacists in Australia. Responses were analysed descriptively. Exploratory factor analyses (EFA) were used to explore the factorial structure and generate scales. Multivariate regression analysis was conducted to explore predictors of willingness.

RESULTS

A 58-item questionnaire was developed, encompassing the 7 domains of the TFA and an eighth domain (willingness). The average CVI was 0.92, domain range (0.88-0.96). The universal CVI was 56/58. Expert feedback informed item revision, creation and deletion. Pharmacists' responses (n = 157) to the final 42-item questionnaire indicated overall acceptance and willingness to conduct PND screening. However, perceived knowledge was lacking. The EFA resulted a two-factor solution (1 = acceptance; 2 = self-efficacy). The measurement scales created had good internal consistency. In multivariate regression analysis, 'Acceptance' (Beta = 0.949 (0.760-1.103)) and 'Self-Efficacy' (Beta = 0.107 (0.036-0.174)) were significant predictors of 'Willingness' and the model predicted 77 % of the variation in 'Willingness'.

CONCLUSIONS

Psychometrically-sound measures of pharmacists' acceptability and willingness to screen for PND have been developed with stakeholder input. The questionnaire can be used for standardised measurement of these constructs across studies.

Fourteen-item perceived stress scale assessment using item response theory among pregnant women

The current study aimed to assess the psychometric properties of the Spanish language version of the 14-item Perceived Stress Scale (PSS-S) in a population of pregnant women who speak Spanish in Peru using item response theory (IRT). Our study consisted of 5,435 pregnant women who participated in the Pregnancy Outcomes Maternal and Infant Study (PrOMIS) cohort in Peru. Exploratory and confirmatory factor analyses were conducted to determine dimensionality of the scale in this population, and item response theory was conducted to determine the applicability of the PSS. The PSS consisted of a 2-factor questionnaire measuring perceived stress and coping capacity accounting for 77% of variability. The IRT analysis showed differences in item difficulty and discrimination. Item difficulty represents the level of the latent construct where 50% of respondents endorse a particular response, and item discrimination determines the rate of change of the probability of endorsing an item for differing ability levels. For the first factor, perceived stress, item 12 was the least difficult and item 2 was the most difficult. For the second factor, coping capacity, item 9 was the least difficult and item 6 was the most difficult. The Spanish version of the 14-item PSS can be a useful assessment tool for perceived stress, but more IRT should be done to delve further into the psychometric properties of the questionnaire to inform clinicians and policy makers more appropriately.

Psychometric properties of Persian version of advance care planning questionnaire among older adults in Iran

INTRODUCTION

Advanced age is associated with life-threatening conditions at the end of life. Many of these persons at the end of their lives cannot make decisions because of the variable consciousness. They are able to make decisions and identify their care priorities, in a process called advanced care planning. So, an instrument is required for investigating ACP of the elderly population. This study was performed to determine the psychometric properties of the Persian version of the advanced care planning questionnaire(ACPQ) in elderly population referring to Tehran.

METHOD

This methodological study was performed in five hospitals in 2021-2022. A total of 390 eligible elderlies were included. The psychometric assessment including translation, face validity, content validity were performed Alsothe exploratory factor analysis and confirmatory factor analysis were assessed. Reliability were done by internal consistency by assessing Cronbach alpha and stability was performed using test-retest.

RESULTS

The face validity of the instrument was performed with minor changes. The content validity index for all of the items was above 0.79. In EFA four factors was extracted also CFA showed that the four-factor model has a good fit of the data (RMSEA: 0.04; NFI: 0.97 CFI: 0.99; IFI: 0.99; RFI: 0.96; AGFI: 0.87; GFI 0/90; standardized RMR: 0.02). Cronbach alpha and ICC were 0.72-0.94 and 0.85-0.96, respectively.

CONCLUSION

The Persian version of the advance care planning questionnaire has desirable psychometric properties for measuring the advanced care planning of the elderly population. In addition, healthcare providers in Iran can employ this questionnaire in their practice and research.

Validation of the Measurement Approaches to Partnership Success (MAPS) Questionnaire

Conceptualizing and testing factors that contribute to the success of community-academic partnerships are critical to understanding their contributions to the health and well-being of communities. Most measures to date focus on factors that contribute to the development of new partnerships, and only a few have been adequately tested and validated. Methods. The Measurement Approaches to Partnership Success (MAPS) study followed a community-based participatory research (CBPR) approach and a multiphase process that included the construction and pilot testing of a questionnaire, and a national survey to validate the psychometric properties of the questionnaire in long-standing CBPR partnerships (existing ≥ six years). All members within partnerships were recruited to complete the survey (55 partnerships with 563 partners). We used confirmatory factor analysis (CFA), Cronbach's alpha statistics, and a pairwise correlations approach to assess discriminant and convergent validity, and assessed internal consistency, and test-retest reliability. Results. All MAPS Questionnaire dimensions demonstrated strong validity and reliability and demonstrated agreement over time. Conclusion. The MAPS Questionnaire includes seven dimensions and 81 items related to the MAPS conceptual model and provides a scientific, in-depth measurement tool that allows long-standing CBPR partnerships to evaluate their work toward achieving health equity.

Development of a Phthalate Environmental Reproductive Health Literacy (PERHL) Scale

BACKGROUND

Substantial evidence exists linking phthalate exposure to adverse reproductive health outcomes. Current US federal regulations of consumer product chemicals place the onus on individuals to mitigate their exposure to phthalates, with assumptions of sufficient environmental health literacy (EHL). Few validated scales for people of reproductive age exist to evaluate phthalate-specific EHL.

OBJECTIVES

Our objective is to develop a multidimensional scale characterizing latent factors of phthalate knowledge, risk perception, and self-efficacy to inform individual-level interventions for reducing phthalate exposure.

METHODS

We distributed a survey with 31 items to 117 participants in the Environmental Reproductive and Glucose Outcomes (ERGO) cohort who gave birth within the last 5 years. Exploratory factor analysis (EFA) was used to identify underlying latent factors. Internal reliability was assessed via omega hierarchical coefficient. Average sum scores for each latent factor and the overall Phthalate Environmental Reproductive Health Literacy (PERHL) score were calculated. Associations between latent factors, overall PERHL score, and sociodemographic characteristics were explored using linear models.

RESULTS

Six latent factors were identified as follows: "Awareness of Phthalate Reproductive Health Impacts," "Uncertainty," "Protective Behavior/Risk Control," "Regulatory Interest," "Awareness of Phthalate Exposure Pathways," and "General Phthalate Knowledge." Each factor demonstrated acceptable to strong internal reliability, with coefficients ranging between 0.63 and 0.93. Non-white participants had lower scores for the "Awareness of Phthalate Reproductive Health Impacts" [β : - 0.35 , 95% confidence interval (CI): - 0.63 , - 0.07 ], "Awareness of Phthalate Exposure Pathways" (β : - 0.32 , 95% CI: - 0.57 , - 0.07 ), and "General Phthalate Knowledge" (β : - 0.36 , 95% CI: - 0.66 , - 0.06 ), but no significant difference in scores on "Uncertainty" (β : 0.17, 95% CI: - 0.16 , 0.50), "Protective Behavior/Risk Control" (β : - 0.04 , 95% CI: - 0.36 , 0.28), or "Regulatory Interest" (β : - 0.21 , 95% CI: - 0.51 , 0.09). No associations were seen for age or educational attainment and latent or sum factors.

DISCUSSION

Six latent factors were identified for the PERHL scale. Non-white race and ethnicity was associated with lower scores for knowledge-related scale factors. https://doi.org/10.1289/EHP13128.

Development, validation, and reliability of the Chrononutrition Profile Questionnaire-Pregnancy (CPQ-P)

BACKGROUND

During pregnancy, physiological changes can affect eating and sleeping habits, which may eventually have negative consequences for maternal and foetal health. To better understand these changes, it is essential to develop a reliable questionnaire that addresses lifestyle habits such as snacking and daytime napping. This study aimed to determine the validity and reliability of the Chrononutrition Profile Questionnaire-Pregnancy (CPQ-P).

METHODS

A total of 399 women in their second and third trimester of pregnancy were recruited from government maternal and child health clinics in Kuala Lumpur and Putrajaya and completed a self-administered online questionnaire. Content validity was conducted with an expert panel consisting of 4 members. Confirmatory factor analysis (CFA) using maximum likelihood was conducted to determine the construct validity. Internal consistency was determined by Cronbach's alpha coefficient (CAC), while the test-retest reliability was conducted using intraclass correlation coefficient (ICC).

RESULTS

The questionnaire had an appropriate content validity index of 0.91. The CPQ-P consists of 22 items, measuring 5 constructs, including morning chrono-habits, sleeping habits, evening eating, temporal eating, and pregnancy symptoms. The factor model showed good fit with χ2/df = 2.486, GFI = 0.893, CFI = 0.912, and RMSEA = 0.065. The 22 items in CPQ-P showed fair to excellent test-retest reliability (ICC: 0.42 to 0.98). The 5 constructs in CPQ-P were found to have a good to excellent internal consistency (α = 0.612-0.963).

CONCLUSIONS

The CPQ-P is a valid and reliable tool for assessing lifestyle habits during pregnancy. The questionnaire can be used to identify areas where pregnant women may need additional support or intervention to adopt healthy behaviours and reduce the risk of adverse maternal and foetal outcomes.

TRIAL REGISTRATION

NCT05700136 (clinicaltrials.gov). Trial registration date: 26/01/2023.

Psychometric Properties of the Turkish Version of the Surgical Anxiety Questionnaire (SAQ)

PURPOSE

This study aimed to determine the psychometric properties of the Turkish surgical anxiety questionnaire (SAQ) version.

DESIGN

This study design was methodological.

METHODS

The study was evaluated with construct validity, exploratory (EFA) and confirmatory factor analysis (CFA), and convergent and discriminant validity. For scale reliability, internal consistency, Cronbach Alpha Coefficient, Pearson Correlation Analysis, and Inter-item Correlation Analysis, test-retest, and parallel forms methods were used.

FINDINGS

The Turkish version of the surgical anxiety questionnaire consisted of a 3-factor structure, and the Cronbach's alpha value was 0.93. The CFA factor loads varied between 0.48-0.98. A positive, high correlation was found between SAQ and the Amsterdam Preoperative Anxiety and Knowledge Scale (APASIS). A positive, moderate correlation between SAQ and State-Trait Anxiety Inventory-1(STAI-1) was found.

CONCLUSION

SAQ has strong validity and reliability in the Turkish society. Nurses could use the SAQ to determine the anxiety level in surgical patients.

HIV Support Source: Development of a Distress Screening Measure for Adults with HIV

To provide an effective, multidimensional, and psychometrically valid measure to screen for distress among people with HIV, we developed and assessed the psychometric properties of HIV Support Source, a distress screening, referral, and support program designed to identify the unmet needs of adults with HIV and link them to desired resources and support. Development and testing were completed in three phases: (1) item generation and initial item pool testing (N = 375), (2) scale refinement via exploratory factor analysis (N = 220); external/internal item quality, and judging theoretical and practical implications of items, and (3) confirmatory validation (N = 150) including confirmatory factor analysis along with reliability and validity analyses to corroborate dimensionality and psychometric properties of the final measure. Nonparametric receiver operating characteristic (ROC) curve analyses determined scoring thresholds for depression and anxiety risk subscales. The final measure comprises 17-items representing four domains of concern: emotional well-being, financial and practical needs, physical well-being, and HIV treatment and sexual health, plus one screening item assessing tobacco and substance use. Our analyses showed strong internal consistency reliability, a replicable factor structure, and adequate convergent, discriminant, and known groups validity. Sensitivity of 2-item depression and 2-item anxiety risk subscales was 0.90 and 0.79, respectively. HIV Support Source is a reliable and valid multidimensional measure of distress that also screens for risk for clinically significant depression and anxiety. It can be implemented within a distress screening, referral, and follow-up program to rapidly assess and support the unmet needs of adults with HIV.

Development and validation of a core competence instrument for clinical nursing teachers: A mixed-methods study

BACKGROUND

Competence-based education (CBE) highlights the important position of clinical nursing teachers and stipulates additional requirements for them. However, research on the core competence of clinical nursing teachers remains lacking, which has hindered their development and the cultivation of nursing students.

OBJECTIVES

Developing and verifying a core competence instrument to evaluate clinical nursing teachers' competence in clinical settings and provide empirical guidance for their development.

DESIGN

A mixed-methods study including qualitative and quantitative methods.

SETTINGS

Primarily, 9 universities and hospitals throughout China.

PARTICIPANTS

Fourteen nursing experts and 2 students participated in the qualitative study, and 626 nursing professionals ultimately participated in the quantitative study.

METHODS

The instrument was developed based on behavioral event interviews and expert consultation as well as exploratory factor analysis using a cross-sectional survey, following which the instrument was verified by confirmatory factor analysis.

RESULTS

A 4-factor core competence instrument for clinical nursing teachers was developed and verified; the four factors included education and teaching competence, clinical nursing competence, management competence and professional awareness and attitude, and the instrument included 25 items in total. The instrument has an explanatory degree of 90.58 %, and it exhibits good reliability and validity as well as a good fit to the data.

CONCLUSIONS

This instrument can provide theoretical guidance for the development of clinical nursing teachers and can be widely used as an effective tool in practice. Nursing administrators and educators should implement policies and programs to help clinical nursing teachers improve their competencies with regard to these four aspects, which can play an important role in the development of nurse education.

Validation of the Comprehensive Feeding Practices Questionnaire among parents of 5- to 7-year-old children in Sweden

Introduction

Parents' behaviours towards food and mealtimes, also known as parental feeding practices, are important in the development of children's eating habits. The Comprehensive Feeding Practices Questionnaire (CFPQ) was designed to measure parental feeding practices. The aim of this study was to evaluate the validity of the CFPQ in Sweden and to assess how it performs across different groups of people.

Methods

Data were from the baseline of a trial promoting children's healthy dietary and physical activity behaviours, the Healthy School Start Plus intervention, conducted in 17 schools in the Stockholm region in Sweden. The CFPQ was completed by 263 parents (59% mothers) of 173 children, aged 5 to 7 years. Exploratory factor analysis and the omega reliability test were performed to identify the underlying factors in the data. Invariance testing was used to investigate the equivalence of these factors across parental sex, parental education and children's weight status.

Results

Five factors were identified: monitoring of children's food intake, pressure to eat, restriction of food, use of food for emotional regulation, and healthy eating guidance. All five factors were invariant across parental sex and education, though some questions were excluded to achieve invariance. The monitoring, pressure to eat and emotional regulation factors were invariant across children's weight status.

Discussion

These results suggest that the CFPQ is valid for use in Sweden, amongst parents of children aged 5 to 7 years. The measurement invariance allows for comparisons of all five underlying factors across mothers and fathers and parental education levels, though across children's weight status for only three factors. Due to the importance of parental feeding practices throughout childhood, this questionnaire should also be validated in other age groups in Sweden.

Promoting equitable health workforce distribution through improved migration governance: A mixed methods study of African health professionals' perceptions in Australia

BACKGROUND

This study examined skilled health worker (SHW) migration governance in African countries and Australia, with an emphasis on areas of influence for achieving an equitable global health workforce distribution.

METHODS

We used a mixed-methods research design with African SHW migrants in Australia. An institutional and rights-based framing of governance guided thematic analysis of the interviews, which was mapped to survey findings from a Bayesian Exploratory Factor Analysis.

RESULTS

The findings imply that Australian state actors enforce laws that attract SHW migrants and promote safe clinical practice, but do not adequately address their integration concerns or role in health system strengthening. Non-state actors in Australia make donations to African health institutions but rarely promote health workforce equity. African state actors respond to increased SHW migration trends by increasing health worker training and limiting migration, but they lack a comprehensive governance framework for involving citizens and engaging foreign governments. There is limited evidence of a shared community definition of SHW migration governance in many African countries.

CONCLUSION

When stakeholders in both sending and receiving countries recognise the indivisibility of the rights at stake (for example, SHW rights as migrants and the right to health), support for an equity-focused SHW migration governance system may increase. Promoting these rights can result in policies that enhance health system strengthening in destination and source countries. Similarly, growing adoption of these rights in sending countries should help inspire a coordinated plan for strengthening health system and SHW migration governance.

Patient Acceptable Symptom State Versus Latent Class Analysis Outcome Classification: A Comparative Longitudinal Study of Knee Arthroplasty

OBJECTIVE

To determine whether Patient Acceptable Symptom State (PASS), a single-item deterministic binary measure of pain and function outcome satisfaction, leads to better differentiation of outcome classification versus latent class analysis probability-based outcome subgroups 1 year after knee arthroplasty (KA).

METHODS

We used data from Knee Arthroplasty Skills Training for Pain (KASTPain), a 1-year no-effect multicenter randomized clinical trial of participants with KA, along with prior work that developed and externally validated good and poor outcome trajectories. Confirmatory latent class analyses were conducted on 2 exemplar outcome measures (Euroquol visual analog scale single-item self-rated health and 4-item pain ratings) and compared with PASS scores. Separation of trajectories were used to compare good and poor latent class self-rated health/4-item pain trajectories and PASS score trajectories.

RESULTS

Prevalence rates for poor outcomes were 10% for self-rated health and 20% for 4-item pain and PASS. Probabilistic latent class-derived classifications of self-rated health and 4-item pain outcomes outperformed PASS in separating growth trajectories. The effect size point estimates for 12-month 4-item pain scale score separation was approximately 3 times larger for latent class analyses as compared with PASS.

CONCLUSIONS

When used for outcome classification, observed PASS scores consistently underperform relative to probabilistic latent class-derived subgroups of pain and self-rated health outcome. PASS is a weak substitute for probabilistic classification of other patient-reported outcome measures of KA outcome. Clinicians and researchers should rely on latent class analyses over PASS to differentiate between outcome subgroups after KA.

Online Mental Health Forums and Rural Resilience: Mixed Methods Study and Logic Model

BACKGROUND

Rural mental health is a growing area of concern internationally, and online mental health forums offer a potential response to addressing service gaps in rural communities.

OBJECTIVE

The objective of this study was to explore and identify pathways by which online peer support mental health forums help to build resilience for rural residents experiencing mental ill-health by contributing to overcoming their specific contextual challenges.

METHODS

We developed a Theoretical Resilience Framework and applied it to 3000 qualitative posts from 3 Australian online mental health forums and to data from 30 interviews with rural forum users.

RESULTS

Drawing on the findings and an abductive approach, a logic model was developed to illustrate links between the resilience resources built and enabling features of forums that make them spaces that facilitate resilience.

CONCLUSIONS

The study demonstrated that online forums make valuable contributions to social well-being and access to a range of timely support services for rural people experiencing mental ill-health, and, while doing so, involve users in the processes of resilience building. The study provides a new way for practitioners to frame the work of and value produced by forums. It gives a logic model that can be used in evaluation and audit as it facilitates a causal framing of how forums, as an intervention, link with resilience outcomes. Ultimately, the study contributes to developing new knowledge about how rural resilience building can be conceptualized and measured while showing how forums are part of contemporary health service provision in rural places.

The role of perceived service quality and price competitiveness on consumer patronage of and intentions towards community pharmacies

BACKGROUND

When consumers choose a service provider, they trade-off their perceptions of service quality with their perceptions of the cost of engaging with the service provider. For community pharmacy owners and managers, it is important to understand the relative impact on loyalty of providing the extra resources to improve service quality versus forsaking gross profit by discounting prices. The aim of this study was to explore the relative effects of consumers' perceptions of service quality (pSQ) and price competitiveness (pPC) on patronage loyalty (patronage history of the rated pharmacy), patronage disloyalty (patronage history at other pharmacies) and loyalty intentions.

METHODS

This was a cross-sectional study conducted within Australia using an online survey administered to members of a consumer marketing panel. Eligible participants were adults taking 2 or more prescription medicines and had attended a community pharmacy within the past 4 weeks. Participants were asked to rate the pharmacy they had last visited, self-report patronage history of that and other pharmacies and report the brand of pharmacy visited. Previously validated scales were used for consumers' perceptions of service quality (pSQ) and loyalty intentions. New scales were developed for pPC and self-reported patronage loyalty and disloyalty. Confirmatory Factor Analysis (CFA) was used to validate the measurement model. Structural Equation Modelling (SEM) with robust estimator (EQS) was used to test the relationships between the variables. Sensitivity analysis, in the presence of covariates were performed with multivariate regression analysis with bootstrapping.

RESULTS

Surveys were completed by 303 participants. Most consumers had visited the rated pharmacy more often than once monthly and most had visited only 1 or 2 pharmacies in the past 12 months for prescription medicines. Overall, participants rated pSQ, pPC highly and expressed high loyalty intentions. The SEM was a good fit for the data. The model predicted 12%, 15% and 69% of the variation in patronage loyalty and patronage disloyalty and loyalty intentions, respectively. The effect of pSQ on patronage was 0.38 (p < 0.05) for loyalty and -0.38 (p < 0.05) on disloyalty whereas the effect of pPC was marginal. The total effect of pSQ and pPC on loyalty intentions was 0.64 (<0.05) and 0.20 (p < 0.05) and in sensitivity analyses, no other covariate, including pharmacy brand was significant.

CONCLUSION

In order to drive loyalty behavior and generate loyalty intentions, providing a high-quality service appears to be far more effective than creating perceptions that the pharmacy has competitive prices. This finding affords a motivation for both discount AND non-discount brand pharmacies to undertake the steps needed to improve service quality.

Overviewing Gaming Motivation and Its Associated Psychological and Sociodemographic Variables: A PRISMA Systematic Review

Nowadays, video games are part of our everyday life, and the number of players is increasing each day passing by. Thus, understanding what motivations drive people to play video games is becoming a very important topic for researchers. That is why this systematic review had the objective to summarize the existing literature about gaming motivation by including papers that used a validated tool to do so while excluding those that did address just the psychopathological aspect of gaming. The systematic review was carried out through the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRSIMA). A total of 53 papers were included in this systematic review, and the findings revealed that nonaddicted players and addicted players seem both to play for social, achievement, and competition motivations. Male players appeared more oriented to play to compete with others, while female players seemed to use games for relationship and social reasons. Gaming motivation was stronger in younger people.

Cultural Adaptation and Validation of the Ostomy Skin Tool to the Brazilian Portuguese

PURPOSE

To adapt the Ostomy Skin Tool (discoloration, erosion, and tissue overgrowth) to the Brazilian culture and to analyze psychometric properties of the adapted version.

DESIGN

Psychometric (methodologic) evaluation of the instrument.

SUBJECTS AND SETTING

Three ostomy/enterostomal therapy nurses evaluated the extent and severity of peristomal skin conditions in a sample of 109 adults 18 years or older with peristomal skin complications. These participants were receiving care in an ambulatory care center in outpatient health services in Sao Paulo and Curitiba, Brazil. In addition, interobserver reliability was measured using a group of 129 nurse participants who attended the Brazilian Congress of Stomatherapy held from November 12 to 15, 2017, in Belo Horizonte, a city located in the state of Minas Gerais, Brazil. Nurse participants assessed the descriptions of peristomal skin complications of the Portuguese version, using the same photographs used in the original DET score, purposely placed out of original order.

METHODS

The study was performed in 2 stages. The instrument was translated into Brazilian Portuguese by 2 bilingual translators, and back-translated into English. The back-translated version was sent to one of the developers of the instrument for additional evaluation. During stage 2, content validity was evaluated by 7 nurses with expertise in ostomy and peristomal skin care. Convergent validity was evaluated by correlating the severity of peristomal skin complications to pain intensity. Discriminant validity was evaluated based on type and time of ostomy creation, presence of retraction, and preoperative stoma site marking. Finally, interrater reliability was evaluated using standardized photograph evaluation reproduced in the same sequence as the original English language version of the instrument, along with paired scores from assessment of adults living with an ostomy generated by an investigator and nurse data collectors.

RESULTS

The Content Validity Index for the Ostomy Skin Tool was 0.83. Levels of mild agreements were obtained for the nurses' observations in the evaluation of peristomal skin complications using standardized photographs (κ= 0.314). In contrast, moderate to almost perfect agreements were obtained when scores were compared in the clinical setting (κ= 0.48-0.93, according to the domains). Positive correlations between the instrument and pain intensity (r = 0.44; P = .001) indicate convergent validity of the adapted version of the Ostomy Skin Tool. In contrast, analysis of discriminant validity was mixed and definitive conclusions about this form of construct validity cannot be made based on this study.

CONCLUSION

This study supports convergent validity and interrater reliability of the adapted version of the Ostomy Skin Tool.

Development and Validation of the Youth Sociopolitical Action Scale for Social Media (SASSM)

Youth sociopolitical action, which encompasses a broad range of behaviors to dismantle systems of oppression, is increasingly taking place on social media and digital platforms. This study presents the development and validation of a 15-item Sociopolitical Action Scale for Social Media (SASSM) through three sequential studies: in Study I, a scale was developed based on interviews with 20 young digital activists (Mage=19, 35% cis-gender women, 90% youth of color). In Study II, Exploratory Factor Analysis (EFA) identified a unidimensional scale using a sample of 809 youth (Mage=17, 55.7% cis-gender women, 60.1% youth of color). In Study III, an EFA and Confirmatory Factor Analysis (CFA) were used to confirm the factor structure of a slightly modified set of items with a new sample of 820 youth (Mage=17, 45.9% cis-gender women, 53.9% youth of color). Measurement invariance testing was conducted by age, gender, racial and ethnic background, and immigrant identity, confirming full configural and metric invariance, and full or partial scalar invariance. The SASSM can further research on youths' efforts to challenge oppression and injustice online.

Valued Outcomes in the Cancer Experience (VOICE)™: Development and validation of a multidimensional measure of perceived control

Objective

Enhancing cancer patients’ sense of control can positively impact psychological well-being. We developed and assessed the psychometric properties of Valued Outcomes in the Cancer Experience (VOICE)TM, a measure of patients’ perceived control over key personal priorities within their cancer experience.

Methods

VOICE construction and testing were completed in three phases with separate participant samples: (1) item generation and initial item pool testing (N = 459), (2) scale refinement (N = 623), and (3) confirmatory validation (N = 515).

Results

A 21-item measure was developed that captures cancer patients’ sense of control in seven key domains: (1) Purpose and Meaning, (2) Functional Capacity, (3) Longevity, (4) Quality Care, (5) Illness Knowledge, (6) Social Support, and (7) Financial Capability. VOICE demonstrated adequate internal consistency (full-scale α = 0.93; factor α = 0.67–0.89) and adequate to strong convergent and discriminatory validity.

Significance of results

VOICE measures cancer patients’ perceived control across a diverse range of personal priorities, creating a platform for elevating patient perspectives and identifying pathways to enhance patient well-being. VOICE is positioned to guide understanding of the patient experience and aid the development and evaluation of supportive care interventions to enhance well-being.

Translation, cross-cultural adaptation and validation of the revised Patients' Attitudes Towards Deprescribing (rPATD) questionnaire to Portuguese: Older adults version

BACKGROUND

Deprescribing is a patient-centered approach to managing inappropriate polypharmacy that faces several barriers, including patients' attitudes and beliefs about medications that need to be considered. For this purpose, the revised Patients' Attitudes Towards Deprescribing (rPATD) questionnaire is a helpful instrument, but until now, there is no Portuguese version.

OBJECTIVES

To translate and validate the rPATD questionnaire (older adults version) to Portuguese.

METHODS

The rPATD questionnaire was translated and cross-culturally adapted using forward-backward translation and pre-testing. A cross-sectional study with 192 older adults aged ≥65 years taking at least 1 regular medication was conducted for validity assessment. Participants were recruited by convenience sampling in 3 Portuguese outpatient rehabilitation medicine clinics. Psychometric properties were evaluated through face and content validity; construct validity, by assessing structural validity through exploratory factor analysis, hypotheses testing, including concurrent validity and cross cultural validity; reliability with internal consistency; and item-total correlation. Floor and ceiling effects were examined.

RESULTS

The exploratory factor analysis (EFA) revealed a 4-factor structure that explains 51.08% of the total variance, as in the original rPATD. These 4 factors are related to the level of involvement in medication management, beliefs in the appropriateness of medication, perceived burden of medication, and concerns about stopping medications. Factor loadings ranged from 0.226 to 0.800; 2 items scored <0.3, and no cross-loading was found. The exclusion of the 2 items loading <0.3 in the EFA showed no significant improvement in factor loading or internal consistency, so the item structure was maintained. In hypothesis testing, 78% of the correlations were correctly predicted. The 4 factors internal consistency was generally acceptable, with Cronbach's alpha ranging from 0.638 to 0.830. The item-total correlation ranged between 0.223 and 0.7.

CONCLUSION

The Portuguese rPATD questionnaire for older adults presents globally good or acceptable psychometric properties.

Evidências de validade da versão brasileira do Demands of Illness Inventory

Objetivo: realizar a tradução, adaptação cultural, análise de evidências de validade e confiabilidade do Demands of Illness Inventory para o português brasileiro. Método: estudo metodológico realizado em seis etapas: tradução, síntese, retrotradução, comitê de especialistas, pré-teste e avaliação do autor do instrumento original. O comitê de especialistas foi formado por oito profissionais multidisciplinares. A concordância dos especialistas foi avaliada pelo Índice de Validade de Conteúdo e o coeficiente Kappa. O pré-teste foi realizado em 31 pacientes. A confiabilidade foi verificada mediante o alfa de cronbach. Resultados: todas as etapas de adaptação cultural foram realizadas satisfatoriamente. O Índice de Validade de Conteúdo e o coeficiente Kappa apresentaram valores acima de 0,83 e 0,81, respectivamente. A confiabilidade foi de 0,95 para o instrumento total. Conclusão: este instrumento mostrou-se adaptado culturalmente para pacientes oncológicos no contexto brasileiro, com evidência satisfatória das propriedades psicométricas avaliadas, boa aceitabilidade e compreensão.

Consumers' self-reported adherence to directions for non-prescription medicines and the role of risk perception

BACKGROUND

Non-prescription medicines (NPMs), while relatively safe, are responsible for a small but significant proportion of medication misadventure and inappropriate use may lead to avoidable healthcare cost. Some consumers vary their use of NPMs from the directions provided on packaging or advice from healthcare professionals. Consumers may use NPMs at lower doses or less frequently than directed because of the risk of side effects.

PURPOSE

This study aimed to develop and validate a self-report measure for the extent to which consumers' follow directions (FDs) for NPMs. Secondly, it aimed to explore the relationship between risk perception towards NPMs and following directions.

METHODS

A cross-sectional study was administered online to participants who belong to an Australian agency which conducts consumer research. Participants were Australian adults who had used NPMs within the last month. Items for the FD-NPM scale were developed and validated. Exploratory factor analysis and confirmatory factor analysis were used to validate the FD-NPM scale. Structural equation modelling (SEM) was employed to explore the relationships between risk perception, covariates, and FDs.

RESULTS

There were 403 participants recruited. Less than 20% "always" or "often" self-reported following directions for dose, frequency, or duration of use. Factor analyses confirmed that there are two moderately positively correlated dimensions of FD-NPM (r = 0.46), which were named underuse and overuse. That is, consumers who self-reported underuse of non-prescription medicines were also more likely to self-report overuse. Consumers with high-risk perception towards NPMs, those who were younger and those who were more educated had a greater tendency to not follow directions.

CONCLUSION

A new self-report measure, the FD-NPM scale was developed and validated. That people who perceives NPMs to be harmful, tend to underuse and more concerningly, overuse them, is of great interest to clinicians and policymakers who are required to manage risk communications.

A Visuoperceptual Measure for Videofluoroscopic Swallow Studies (VMV): A Pilot Study of Validity and Reliability in Adults with Dysphagia

The visuoperceptual measure for videofluoroscopic swallow studies (VMV) is a new measure for analysing the recordings from videofluoroscopic swallow studies (VFSS). This study evaluated the reliability and validity of the pilot version of the VMV using classical test theory (CTT) analysis, informed by the consensus-based standards for the selection of health measurement instruments (COSMIN) guidelines. Forty participants, diagnosed with oropharyngeal dysphagia by fibreoptic endoscopic evaluation of swallowing, were recruited. The VFSS and administration of bolus textures and volumes were conducted according to a standardised protocol. Recordings of the VFSS were rated by three blinded raters: a speech-language pathologist, a radiologist and a phoniatrician. Inter- and intra-rater reliability was assessed with a weighted kappa and resulted in 0.889 and 0.944 overall, respectively. Structural validity was determined using exploratory factor analyses, which found four and five factor solutions. Internal consistency was evaluated with Cronbach's alpha coefficients, which found all but one factor scoring within an acceptable range (>0.70 and <0.95). Hypothesis testing for construct validity found the expected correlations between the severity of dysphagia and the VMV's performance, and found no impact of gender on measure performance. These results suggest that the VMV has potential as a reliable and valid measure for VFSS. Further validation with a larger sample is required, and validation using an item response theory paradigm approach is recommended.

Cross-Cultural Adaptation, Reliability, and Psychophysical Validation of the Pain and Sleep Questionnaire Three-Item Index in Finnish

Reciprocal relationships between chronic musculoskeletal pain and various sleep disturbances are well established. The Pain and Sleep Questionnaire three-item index (PSQ-3) is a concise, valid, and reliable patient-reported outcome measure (PROM) that directly evaluates how sleep is affected by chronic low back pain (CLBP). Translation and cross-cultural validation of The Pain and Sleep Questionnaire three-item index Finnish version (PSQ-3-FI) were conducted according to established guidelines. The validation sample was 229 subjects, including 42 pain-free controls and 187 subjects with chronic musculoskeletal pain. Our aims were to evaluate internal consistency, test-retest reliability, measurement error, structural validity, convergent validity, and discriminative validity and, furthermore, to study the relationships between dizziness, postural control on a force plate, and objective sleep quality metrics and total PSQ-3-FI score. The PSQ-3-FI demonstrated good internal consistency, excellent test-retest reliability, and small measurement error. Confirmatory factor analysis confirmed acceptable fit indices to a one-factor model. Convergent validity indicated fair to good correlation with pain history and well-established pain-related PROMs. The PSQ-3-FI total score successfully distinguished between the groups with no pain, single-site pain, and multisite pain. A higher prevalence of dizziness, more impaired postural control, and a general trend towards poorer sleep quality were observed among subjects with higher PSQ-3-FI scores. Postural control instability was more evident in eyes-open tests. The Finnish PSQ-3 translation was successfully cross-culturally adapted and validated. The PSQ-3-FI appears to be a valid and reliable PROM for the Finnish-speaking CLBP population. More widespread implementation of PSQ-3 would lead to better understanding of the direct effects of pain on sleep.

Healthcare professionals' knowledge, attitudes and practices toward deprescribing: a protocol of cross-sectional study (Desmedica Study-Brazil)

BACKGROUND

Deprescribing is the planned and supervised process of dose reduction or stopping of medication that might be causing harm, or no longer be of benefit. It is an activity that should be a normal part of care/the prescribing cycle. Although now broadly recognised, there are still challenges in its effective implementation.

OBJECTIVES

To develop and validate an instrument to measure Brazilian healthcare professionals' knowledge, attitudes and practices towards deprescribing.

METHODS

This study will include the following steps: (1) development of the preliminary instrument; (2) content validation; (3) pilot study; (4) evaluation of psychometric characteristics. After the elaboration of items of the instrument through the literature review, we will use a hybrid Delphi method to develop and establish the content validity of the instrument. Further, a pilot survey will be performed with 30 healthcare professionals. Finally, for the evaluation of psychometric characteristics, a cross-sectional study will be accomplished with a representative sample of different healthcare professionals from different Brazilian states using respondent-driven sampling. Exploratory factor analysis and confirmatory factor analysis will be performed. For assessing the model fit, we will use the ratio of χ² and df (χ²/df), comparative fit index, the goodness of fit index and root mean square error of approximation. In addition, the reliability of the instrument will be estimated by test-retest reproducibility and Cronbach's alpha coefficient (α).

ETHICS AND DISSEMINATION

The Ethics Committee for Research at the University of Sorocaba (ethics approval number: 3.848.916) approved the study. Study findings will be circulated to healthcare professionals and scientists in the field through publication in peer-reviewed journals and conference presentations.

Validation of the psychometric properties of the Malay advance care planning questionnaire

Background

There is a growing interest among the developing countries on advance care planning (ACP) due to the reported benefits of planning ahead in the developed countries. Validated instruments in various languages have been developed to facilitate study on the views of public prior to its implementation. However, instrument to explore the views on ACP in Malay has not been developed and validated yet, even though Malay is spoken extensively by approximately 220 million people in the Malay Archipelago. There is also a need for instrument in Malay language to facilitate the assessment of knowledge, attitude and practice (KAP) of Malaysians regarding ACP. Therefore, the aim of this study was to validate the psychometric properties of the Malay Advance Care Planning Questionnaire (ACPQ-M).

Methods

The ACPQ was translated according to international guidelines. This validation study was conducted from January to June 2018. Participants who were ≥ 21 years old, and able to understand Malay were recruited from an urban primary care clinic and a tertiary education institution in Malaysia. A researcher administered the ACPQ-M to participants via a face-to-face interview at baseline and 2 weeks later. Each interview took approximately 10–20 min.

Results

A total of 222/232 participants agreed to participate (response rate = 96.0%). Exploratory factor analysis and confirmatory factor analysis found that the ACPQ-M was a 4-factor model. The Cronbach’s α values for the four domains ranged from 0.674–0.947. Only 157/222 participants completed the test-retest (response rate = 71%). At test-retest, quadratic weighted kappa values for all domains ranged from 0.340–0.674, except for two domains which ranged from − 0.200-0.467.

Conclusions

The ACPQ-M was found to be a 4-factor model, and a valid and reliable instrument to assess the KAP regarding ACP. This instrument can contribute to profound understanding of the KAP of Malaysians regarding ACP, and assist policy makers in determining the readiness for legislation of ACP in Malaysia.

Development and validation of a Fever Management Questionnaire aimed at parents and care givers

AIM

The symptoms of childhood fever are often inappropriately managed by care givers resulting in overuse of health resources and medication errors. Understanding care giver's knowledge, attitudes and beliefs about fever management using a validated questionnaire is warranted. The aim of this study was to develop and validate a comprehensive Fever Management Questionnaire.

METHODS

The questionnaire items were developed through a content analysis of the literature and current fever management guidelines. For the knowledge component, a multidisciplinary panel of 12 experts assessed content validity of items (n = 35) through a one-round Delphi process. The construct validity of the attitudes and belief items (19 items) were assessed using principal components analysis utilising response data collected from 149 Australian parents and care givers.

RESULTS

Based on the responses from the panel of experts, six items were removed, six items required substantive modification, 13 items required minor modification with the remaining eight items retained in original form. For the Attitudes and Beliefs items, a parsimonious solution with three principal components resulted after removal of six cross-loading items. The factor loadings of each item displayed a strong correlation to one of three components with scores ranging from 0.791 down to 0.541. The resulting Cronbach's α for the tool was 0.729.

CONCLUSION

Psychometric testing of this two-part Fever Management Questionnaire has resulted in a tool with acceptable validity and reliability. This tool should now be used to gather the knowledge and attitudes of care givers surrounding fever management to further understand factors that lead to inappropriate fever management.

Medical staff perspective on factors influencing their prescribing decisions: a cross-sectional study in Mekong Delta, Vietnam

Objectives

Understanding medical staff’s prescription behaviors helps improve the quality of prescriptions and the rationality of medication use. Although factors affecting the prescribing decisions were discussed in various studies worldwide, limited knowledge of these issues has been reported in Vietnam. This paper aims to examine factors that influence prescribing behavior concerning medical staff’s demographics and characteristic differences.

Methods

Quantitative descriptive cross-sectional study, using adapted questionnaire consisting of 27 factors divided into 9 factor categories, was conducted with medical staff in Mekong Delta during June–July, 2019. Rasch analysis was performed to assess the questionnaire psychometric properties. Descriptive analysis, parametric tests and non-parametric tests were utilized to address the study objectives.

Key findings

A total of 201 participants completed the questionnaire. A majority of participants (&gt;90%) agreed that their own decision to prescribe a drug was influenced by several factors such as drug safety and efficacy (92.5%), patient history (92.0%), patient income (92.0%) and patient disease status (91.0%). There were significant age differences in influences on prescribing decision. Medical staff aged under 30 appreciated the role of pharmacists higher than whose aged 31–40 (P-value = 0.010) and over 40 (P-value = 0.013). Additionally, they were more concerned with ‘patient characteristics’ including patient request, expectations, and disease status when making prescribing decisions compared with whose aged over 40 (P-value = 0.005).

Conclusions

The study revealed various factors influencing medical staff prescription decision-making processes. These findings could be useful for pharmaceutical companies in Vietnam in developing marketing strategies, and for policy-makers in timely improvement of prescription quality.

Factors associated with the intensity of government remunerated and unremunerated service provision in community pharmacies

BACKGROUND

Many community pharmacies provide medication and disease state management services with and without specific remuneration. Availability of these services is often reported, however little is known about factors influencing the intensity of their provision.

OBJECTIVE

To investigate factors associated with the intensity of provision of selected government remunerated and unremunerated community pharmacy services in Western Australia (WA).

METHODS

A questionnaire was mailed to a random sample of 421/628 (67%) community pharmacies in WA. The first dependent variable was intensity of government remunerated MedsCheck and Diabetes MedsCheck service frequencies per month. The second was the intensity of the sum of government unremunerated asthma screening, blood glucose testing, cholesterol testing and smoking cessation disease state management service frequencies per week. Principal Component Analysis defined attitudinal components influencing service provision. Linear regression with bootstrap confidence intervals determined variables associated with intensity of provision of the selected services. The variables were: pharmacist; pharmacy setting characteristics; and, attitudinal factors.

RESULTS

The questionnaire yielded a response rate of 49.2%. Attitudinal components that facilitated service provision were: general practitioners (GPs) willingness to collaborate; pharmacists are capable and ready; and pharmacists require further training. Staff capability and low return on investment were barriers to increased service provision. The intensity of government remunerated services was independently associated with pharmacies having pharmacy interns, fewer dispensary technicians, and being capable and ready to provide the services. Higher intensity of the provision of the unremunerated disease state management services was independently associated with the intensity of provision of MedsCheck and Diabetes MedsCheck services.

CONCLUSIONS

Improved pharmacy workflow, achieved by the availability of pharmacy interns, and pharmacists being capable and ready, were important factors in the intensity of MedsCheck and Diabetes MedsCheck services. Intensity of the provision of government remunerated services facilitated a higher prevalence of disease state management services provision.