Depression Anxiety and Stress Scale (DASS-21) - Short Form: Adaptação e Validação para Adolescentes Brasileiros

Psychometric properties of the Depression, Anxiety, and Stress Scale (DASS-21) among different Chinese populations: A cross-sectional and longitudinal analysis

Given that there is limited evidence concerning the psychometric properties of DASS-21 when applied to primary school students, the present study undertook a comprehensive exploration of the psychometric evidence supporting the use of the DASS-21 within this demographic. The research comprised three studies. In Study 1, the basic psychometric properties of internal consistency and construct validity were examined. A total of 3138 primary school students from three provinces in mainland China participated. The internal reliability of the overall scale was 0.93, and for all the subscales, it was higher than 0.80. Construct validity was partially supported. Both exploratory and confirmatory factor analyses upheld the factorial validity of the original three-factor structure. While convergent validity was established, the results showed unsatisfactory discriminant validity. The bifactor model showed that DASS-21 raw scores predominantly indicated the general factor, evidenced by the high explained common variance and omega-hierarchical values. However, the contributions from the three specific factors were minimal, with their omega hierarchical values all below 0.15. In Study 2, a longitudinal design was adopted, tracking 1366 primary school students from Southwest China over a three-month interval. The results further confirmed that the DASS-21 exhibited scalar time-invariance. The latent mean analysis showed that there were no statistically significant differences in the latent means of depression, anxiety, and stress between Time 1 and Time 2. In Study 3, which included 364 college students and 483 enterprise workers, the results demonstrated that the DASS-21 had measurement invariance across different populations. The latent mean analysis further confirmed that, in terms of the latent mean of all three subscales, both college students and enterprise workers had significantly higher scores than primary school students. Overall, the findings indicated that the DASS-21 is a suitable tool for screening schoolchildren for general psychological distress, but it is not suitable for discerning distinct negative mood state disorders.

Suicide risk in high school students: who are the most vulnerable groups?

Objective:

To investigate the prevalence and factors associated with suicide risk among high school students from a federal educational institution in Rio Grande do Sul (IFRS).

Methods:

This is a cross-sectional study based on a census of students (n=510) enrolled in IFRS, campus Rio Grande, in the second half of 2019. Data were collected through a self-administered questionnaire. Suicide risk was measured with the instrument Mini-International Neuropsychiatric Interview, and data were analyzed using Poisson regression with robust variance adjustment.

Results:

The prevalence of high suicide risk was 17.3% (95% confidence interval — 95%CI 14.0–20.0), with the following independent associated factors: female gender, higher socioeconomic status, alcohol consumption, less social support, attempt to lose weight, self-harm behavior, and increased risk of depression, anxiety, and stress.

Conclusions:

One in six students showed a high suicide risk. The identification of factors associated with the outcome is useful for detecting the most severe cases and referring them to specialized care.

Psychometric properties of the Smartphone Addiction Inventory - Short Form (SPAI-SF) in Brazilian adolescents

The Smartphone Addiction Inventory - Short Form (SPAI-SF) is shorter version (10 items) of the original version of SPAI (26 items). In this study, we aimed to: (i) adapt and test the internal structure of the SPAI-SF, using confirmatory factor analysis (CFA), multigroup confirmatory factor analysis (MGCFA), and network analysis; (ii) analyze the internal consistency, temporal stability, criterion, predictive and construct validities of the SPAI-SF. A total of 392 adolescents (M = 12.76; SD = 1.00) completed the following measures: demographic questionnaire, SPAI-SF, Smartphone Addiction Scale - Short Version (SAS-SV), and the Internet Addiction Test (IAT). The CFA showed good fit indices with the original four factors, and MGCFA indicated measurement invariance for gender. Network analysis provided an understanding of the core symptoms of problematic smartphone use (PSU) for both boys and girls. The intraclass correlation coefficient (ICC) was 0.865 (95% CI: 0.841 - 0.887) and indicated a robust temporal stability. The instrument demonstrated acceptable overall reliability measured by Cronbach's alpha and McDonald's Omega criteria (α = 0.722; ω = 0.725) and did not show floor and ceiling effects. The scale's significant correlations demonstrated convergent and criterion validities of the SPAI-SF with SAS-SV, IAT, and Smartphone usage data. The SPAI-SF is a reliable instrument to detect PSU in adolescents.

Prevalence of Depression, Anxiety, and Stress in Junior High School Students in Guadalajara, Mexico: A Cross-Sectional Survey Study

Confinement and a lack of social interaction are associated with depressive symptoms, low self-esteem, and suicidal thoughts. We report the results of a cross-sectional survey of 1414 junior high school students. The aim was to evaluate the prevalence of depression, anxiety, and stress in Guadalajara, Mexico, during the COVID-19 pandemic. Mean scores on the validated Spanish version of the Depression, Anxiety, and Stress Scale (DASS-21) were found to be 6.15 ± 5.6 for depression, 5.8 ± 5.2 for anxiety, and 8.08 ± 5.3 for stress. Female students scored higher in all three conditions (p < 0.001). Students who had relatives infected with COVID-19 showed significantly more anxiety than those who did not (p < 0.004). Although certain demographic groups are at higher risk of manifesting depression, anxiety, and stress, the student population has also been affected by the global impact of the pandemic.

Psychological Impact of the COVID-19 Pandemic on Dentists in Latin America's Epicenter: São Paulo, Brazil

The present study aimed to assess the prevalence and associated factors of stress and anxiety symptoms among dentists during the COVID-19 pandemic in the state of São Paulo, Brazil. A structured questionnaire was sent electronically to 93,280 dentists with active registration in the Dental Council of São Paulo, Brazil, enquiring about information regarding the first-wave peak period in Brazil. Descriptive analyses of background characteristics, perceptions of preparedness, and psychological impact were calculated. Multiple logistic regression analysis was performed, and independent variables that showed p < 0.20 were used in the adjusted logistic regression model to compare the psychological impact on dental professionals. Among the 2113 respondents, female participants had 63% lower chance of reporting anxiety than males. Older dentists had a lower likelihood of reporting anxiety compared to 21-30-year-old dentists (p ≤ 0.05). Dentists working in the public health service were 1.78 times more likely to report anxiety than those who worked in private practice. Finally, dentists in the COVID-19 high-risk group and those with a family or team member with a positive COVID-19 diagnosis were more likely to have anxiety. This study can help dental and other healthcare professionals to better understand the consequences of COVID-19 in terms of mental health.

Dimensionality and reliability of the Depression Anxiety Stress Scales 21 among adolescents in North Macedonia

This study examined the structural validity and reliability of the DASS-21 in a large sample (N = 4,202) of secondary school students from North Macedonia (M_age = 16.43 ± 1.04, 65% girls). Based on theoretical and empirical considerations, five structural models were compared using confirmatory factor analysis. The original three-factor model provided good fit to the data; however, high interfactor correlations indicated that the depression, anxiety, and stress factors were indistinguishable. The bifactor solution yielded superior fit relative to other tested models. Factor loading patterns revealed a strong general factor and some specificity of the depression and anxiety factors, whereas the stress items were primarily markers of general distress. Model-based reliability and ancillary bifactor indices revealed that the DASS-21 is essentially unidimensional. Thus, only the total score could be used as a reliable measure of general emotional distress, while subscale scores should be avoided. Overall, the findings provide further support for the cross-cultural validity of the DASS-21 and confirm that it is suitable for use among older adolescents in North Macedonia.

The implementation of an online mindfulness-based program for pediatric patients at a tertiary hospital in South America: a feasibility study protocol

Background

The prevalence of chronic and complex pediatric health conditions has quickly risen over the last decades. Chronic and complex health conditions make pediatric patients and their families more susceptible to many distressing events during their lifespan. Mindfulness-based interventions have become a popular intervention for individuals living with chronic illnesses and have been adapted for pediatric populations with good results, including online versions. This study intends to report an implementation protocol of an online mindfulness-based program for adolescents to address an important gap in stress relief and health promotion for pediatric patients.

Methods

In this article, we describe the rationale and design of an implementation study of an online mindfulness-based program for pediatric patients at a tertiary pediatric hospital in South America. Participants will be recruited during one year to participate in an eight-session online mindfulness-based program. To assess our primary aim of feasibility, we will exam recruitment, retention and participation rates. Participants will also complete a symptomatology evaluation (i.e., depression, anxiety, and stress symptoms) at baseline and immediately at post-treatment and fidelity will be evaluated by a structured questionnaire.

Discussion

This study will be the first known to assess the implementation of an online mindfulness-based program for a pediatric population at a tertiary pediatric center in South America under real-life conditions. This study will establish the feasibility of a novel intervention aimed at promoting mental health and positive coping strategies among pediatric patients with chronic and complex health conditions. Evidence from this study would be useful to patients, families, clinicians, and policymakers and will help to devise strategies of health promotion for the pediatric population, as well as serve as a model for a future trial to examine efficacy of the proposed intervention.

Trial registration

This research has been registered at Ensaiosclinicos.gov.br, identifier RBR-23trp87. Registered 25 February 2022—retrospectively registered.

Internet Addiction among Brazilian Students: Prevalence and Association with Emotional Problems

The objective of this study was to evaluate the prevalence of Internet addiction (I.A.) among students and its association with emotional problems. A total of 2,214 students (M = 21.9; SD = 1.86) from all Brazilian regions responded to an online questionnaire and were classified according to the IAT instrument score in NRU= No-risk Users, LRU= Low-risk Users, and RHU= Risk and High-risk Users. DASS-21 measured emotional problems, and the data were analyzed using descriptive and inferential statistics. It was observed that 12.5% were classified as URAR and presented higher levels of depression (p< 0.001), anxiety (p< 0.001), and stress (p< 0.001). The main predictors for I.A. were depression (aOR = 3.2), anxiety (aOR = 2.5), and stress (aOR = 2.6). These results confirm an association between DI and emotional problems, as indicated in the literature.

Uso excessivo de redes sociais por estudantes de ensino médio do sul do Brasil

Resumo Objetivo: Avaliar a prevalência do uso excessivo de redes sociais e identificar os seus fatores associados em estudantes do ensino médio do Sul do Brasil. Métodos: Trata-se de um estudo transversal de base populacional. Foram elegíveis para esta pesquisa todos os estudantes que estavam cursando o ensino médio no Instituto Federal do Rio Grande do Sul, campus Rio Grande, no 2º semestre de 2019. No total, 513 alunos participaram do estudo. A variável dependente deste estudo foi o uso excessivo de redes sociais, definido como mais de cinco horas por dia. Foram realizadas análises descritivas e bivariadas e, para verificar as associações, foi utilizada a regressão de Poisson, com ajuste robusto da variância. Resultados: A prevalência de estudantes que relataram uso excessivo de redes sociais foi de 35,9%. Os grupos mais suscetíveis a usar excessivamente as redes sociais foram: sexo feminino, cor de pele preta/parda e faixa etária entre 18 e 20 anos. Houve associação entre uso excessivo de redes sociais com tabagismo, risco de depressão, ansiedade e estresse, risco elevado de suicídio e uso de drogas. Conclusões: Mais de um terço dos estudantes usava em excesso as redes sociais. Esse comportamento esteve associado com desfechos negativos em saúde.

Excessive use of social media by high school students in southern Brazil

Objective:

To assess the prevalence of excessive use of social media and associated factors, as well as possible health consequences in high school students in southern Brazil.

Methods:

This is a population-based cross-sectional study, conducted with high school students in the city of Rio Grande, RS. All students who were attending high school at the Federal Institute of Rio Grande do Sul, campus Rio Grande, were eligible for this research in the second semester of 2019. In total, 513 students participated in the study. The dependent variable was excessive use of social media, defined as more than five hours per day. Descriptive and bivariate analyses were carried out and the Poisson regression was used to verify associations, with robust adjustment of variance.

Results:

The prevalence of students who reported excessive use of social media was 35.9%. The groups that were most susceptible to excessive use of social media had the following profile: female, black/brown skin, aged between 18 and 20 years old, attending the first year of high school. Excessive use of social media was shown to be associated with smoking, risk of depression, anxiety and stress, high risk of suicide and drug use.

Conclusions:

More than a third of students used social media excessively. This behavior was associated with negative health outcomes.

Cross-cultural Adaptation and Validation of the Childbirth Fear Prior to Pregnancy Scale in Brazil

Background:

The fear of childbirth can range from apprehension to intense fear (tokophobia), with serious consequences for maternal health. Therefore, a standardized scale is needed to measure the fear of childbirth before pregnancy.

Objective:

This study aimed to adapt the Childbirth Fear Prior to Pregnancy (CFPP) scale to the Brazilian context and analyse its validity and reliability.

Methods:

A cross-sectional survey was completed by 146 nursing students at two Brazilian universities. A committee of experts evaluated the cross-cultural adaptation of the CFPP scale. Construct validity was verified using item-total correlations and Exploratory Factor Analysis (EFA). The validity of divergent concurrent criteria was evaluated by associating the score obtained using the Brazilian CFPP with the Depression, Anxiety, and Stress Scale (DASS-21). Reliability was analysed using Cronbach’s alpha coefficient and test-retest.

Results:

Correlation analysis revealed a predominance of moderate inter-item correlation and strong item-total correlation (>0.62). The EFA indicated that all items related to a single factor, with factor loadings and communalities >0.5. These results reinforced the one-dimensionality of the Brazilian CFPP. The validity of divergent concurrent criteria was confirmed via weak correlations with DASS-21 scores (r = 0.32, p < 0.001). The Cronbach’s alpha (0.86) and the intra-class correlation coefficient (0.99) indicated reliability and strong temporal stability, respectively.

Conclusion:

The Brazilian version of the CFPP provides evidence of validity and reliability to measure fear of childbirth before pregnancy in young adults in Brazil.

DASS-21: assessment of psychological distress through the Bifactor Model and item analysis

Abstract The term distress has been used to refer to a continuous variable operationalized through symptoms of depression, anxiety, and stress. In this study, psychological distress is measured using the Depression, Anxiety, and Stress Scale (DASS-21). Confirmatory Factor Analysis compared the fit of different measurement models for the DASS-21, with the parameters of the items verified through the Andrich rating scale model. A non-clinical sample of 530 participants (mean age=24.35±6.55 years; 71.89% women) responded to the instrument. According to the theoretical hypothesis, the results indicated a better fit for the bifactor model, composed of three specific factors (depression, anxiety, and stress) and a general factor (general psychological distress). The assessment of the item properties allowed for a better understanding of the organization of the continuum represented by the construct psychological distress. It is possible to conclude that the Brazilian version of the DASS-21 is an adequate measure for psychological distress.

Cross-cultural adaptation and psychometric properties of the Kessler Distress Scale (K10): an application of the rating scale model

BACKGROUND

The Kessler Distress Scale (K10) is a self-report scale for the assessment of non-specific psychological distress in the general and clinical population. Because of its ease of application and good psychometric properties, the K10 has been adapted to several cultures. The present study seeks to adapt the K10 to Brazilian Portuguese and estimate its validity evidence and reliability.

METHODS

A total of 1914 individuals from the general population participated in the study (age = 34.88, SD = 13.61, 77.7% female). The adjustment indices were compared among three different measurement models proposed for the K10 through confirmatory factor analysis (CFA). The items' properties were analyzed by Andrich's Rating Scale Model (RSM). Furthermore, evidence based on relations to other variables (depression, stress, anxiety, positive and negative affects, and satisfaction with life) was estimated.

RESULTS

CFA indicated the adequacy of the bifactor model (CFI= 0.985; TLI= 0.973; SMR= 0.019; RMSEA= 0.050), composed of two specific factors (depression and anxiety) and one general factor (psychological distress), corresponding to the theoretical hypothesis. Additionally, it was observed multiple-group invariance by gender and age range. The RSM provided an understanding of the organization of the continuum represented by the psychological distress construct (items difficulty), which varied from -0.89 to 1.00; good adjustment indexes; infit between 0.67 and 1.32; outfit between 0.68 and 1.34; and desirable reliability, α= 0.87. Lastly, theoretically coherent associations with the external variables were observed.

CONCLUSIONS

It is concluded that the Brazilian version of the K10 is a suitable measure of psychological distress for the Brazilian population.

Estresse, desesperança e expectativas de futuro na adolescência em alunos do ensino médio

O presente artigo investigou a associação dos níveis de estresse, desesperança e expectativas de futuro em uma amostra de 295 adolescentes, alunos do ensino médio de uma rede educacional particular confessional (sendo 127 meninos (43,1%) e 168 meninas (56,9%); com idades entre 14 e 18 anos (M = 15,90; SD = 1,21), na região metropolitana de Belém, no estado Pará. Os instrumentos utilizados foram: questionário sociodemográfico, Escala de Stress para Adolescentes (ESA), Escala BECK de Desesperança (BHS) e questionário sobre expectativas futuras. Por meio de técnicas estatísticas para análise dos dados, observou-se que as meninas estavam mais estressadas que os meninos e que adolescentes com moderado estresse apresentaram alto nível de desesperança. Também se verificou que adolescentes com altos níveis de estresse apresentaram baixa ou muito baixa expectativa de ser respeitado na comunidade e concluir o ensino médio. Esse estudo sugere que o estresse pode comprometer as expectativas de futuro e o bem-estar do adolescente.

Practicing Social Isolation During a Pandemic in Brazil: A Description of Psychosocial Characteristics and Traits of Personality During COVID-19 Lockout

The experience of the pandemic caused by the Coronavirus and the consequent disease triggered by it (COVID-19) brought to light fragilities that have been long overlooked by the scientific community and by various political and social institutions. The pandemic also brought to the fore certain social practices resulting from individual behaviors, such as wearing a mask and practicing social isolation. It demonstrated the need for social commitment and pro-social behaviors if societies are to respond successfully. The purpose of this article is to evaluate psychological and sociodemographic characteristics associated with compliance or noncompliance of individuals with these practices in two different phases of the pandemic experience in Brazil: in the first month and after three months. Participants for the first phase of the study were recruited through advertisements in the media and social networks. 1,914 individuals aged between 14 and 81 years agreed to participate, 78.2% of these were women, from 25 Federative Units in Brazil. In the second phase, 761 individuals who participated in the first phase, were reassessed. The authors used the following instruments for data collection: a standardized questionnaire collecting information of sociodemographic characteristics and dynamics of social isolation; the Kessler Psychological Distress Scale; the Life Satisfaction Scale; the Positive and Negative Affections Scale; and the Reduced Personality Markers and Stress Mindset Scale. All instruments used presented evidence of validity and adequate reliability indexes. The comparison of categorical exploratory variables with motives for following social isolation protocols was performed using Pearson's Chi-square, and the comparison of continuous exploratory variables was performed using the Mann-Whitney test. Covariance Analysis was performed using as covariates those that showed significance/effect on isolation in previous analyses. The results showed that respondents practicing social isolation to comply with governmental recommendations had lower scores on the scales of neuroticism and conscientiousness. They reported also less stress, anxiety, and depression, and less general distress. Overall, these respondents also displayed more positive affect, and tended to reframe stress in a more positive way than others. These preliminary results describe the psychological characteristics of individuals and their associations with social behaviors in a period of collective stress and high social risk.

Chatbot-Based Assessment of Employees' Mental Health: Design Process and Pilot Implementation

BACKGROUND

Stress, burnout, and mental health problems such as depression and anxiety are common, and can significantly impact workplaces through absenteeism and reduced productivity. To address this issue, organizations must first understand the extent of the difficulties by mapping the mental health of their workforce. Online surveys are a cost-effective and scalable approach to achieve this but typically have low response rates, in part due to a lack of interactivity. Chatbots offer one potential solution, enhancing engagement through simulated natural human conversation and use of interactive features.

OBJECTIVE

The aim of this study was to explore if a text-based chatbot is a feasible approach to engage and motivate employees to complete a workplace mental health assessment. This paper describes the design process and results of a pilot implementation.

METHODS

A fully automated chatbot ("Viki") was developed to evaluate employee risks of suffering from depression, anxiety, stress, insomnia, burnout, and work-related stress. Viki uses a conversation style and gamification features to enhance engagement. A cross-sectional analysis was performed to gain first insights of a pilot implementation within a small to medium-sized enterprise (120 employees).

RESULTS

The response rate was 64.2% (77/120). In total, 98 employees started the assessment, 77 of whom (79%) completed it. The majority of participants scored in the mild range for anxiety (20/40, 50%) and depression (16/28, 57%), in the moderate range for stress (10/22, 46%), and at the subthreshold level for insomnia (14/20, 70%) as defined by their questionnaire scores.

CONCLUSIONS

A chatbot-based workplace mental health assessment seems to be a highly engaging and effective way to collect anonymized mental health data among employees with response rates comparable to those of face-to-face interviews.

Perceived Community Support Questionnaire: evidence of factorial validity and internal consistency for the Brazilian context

This work sought to adapt the Perceived Community Support Questionnaire (PCSQ) to the Brazilian context, gathering evidence of its factorial structure and internal consistency. Two studies were performed. The first comprised 119 individuals aged between 21 and 85 years (M = 41.59, SD = 15.33) with incomplete elementary education (52.1%). An exploratory factor analysis was conducted and indicated a three-factor structure, explaining 42.3% of the total variance. The second study comprised 203 participants aged between 19 and 84 years (M = 42.99, SD = 12.70) with higher education (17.2%). The three-factor structure was corroborated by a confirmatory factor analysis (CFI = 0.944, TLI = 0.931, RMSEA = 0.088, 90%CI: 0.072; 0.103), and Cronbach's alpha was adequate. Questionnaire dimensions were named Community Integration, Community Participation, and Community Organizations. Despite the issues involving inverted items, the instrument gathered evidence of factorial validity and internal consistency, showing applicability to further studies.

The testing for COVID-19 in symptomatic patients as a protective factor against stress, anxiety, and depression

Abstract Objectives: to determine the frequency of stress, anxiety, and depression symptoms in symptomatic patients for COVID-19. To evaluate the associated factors involved in these variants. Methods: between May/June of 2020, it was conducted a prospective cross-section study with symptomatic participants for COVID-19 (n=300). It was applied an online questionnaire and the DASS-21 to evaluate the mental health of participants. Results: it was observed that 28.6%, 29.7% and 27% of the participants showed severe/extreme levels symptoms of stress, anxiety, and depression, respectively. The testing for COVID-19 application had constituted a protective factor for the development of psychiatric morbidity, once it had shown significant association in the low frequencies of severe/extreme depression [Odds Ratio (OR)]= 0.26; p=0.002) and stress (OR=0.39; p=0.01). Conclusion: individuals that are symptomatic for COVID-19 are a vulnerable group that may present high symptomatology for depression, anxiety, and stress. The identification of psychiatric morbidity frequency and its associated factors may contribute for the development of mental health strategies aiming at the prevention and mitigation of psychological impact in COVID-19 symptomatic population during the pandemic.

Social Distancing: Prevalence of Depressive, Anxiety, and Stress Symptoms Among Brazilian Students During the COVID-19 Pandemic

Social distancing due to the COVID-19 pandemic can impact mental health, triggering symptoms such as anxiety, stress and depression. Therefore, this study aimed to assess the levels of anxiety, depression and stress during the period of social distancing due to COVID-19 in students from a campus of the Federal Institute in the metropolitan area of Porto Alegre/RS. A correlational and exploratory study was performed. The sample of the present research was composed by 208 students, who responded to a self-administered online questionnaire with sociodemographic variables and the Depression, Anxiety and Stress Scale Short Form – DASS-21. The detected prevalence of symptoms classified as moderate-severe was 49% for stress, 39% for depression and 33% for anxiety. An association was found between higher levels of anxiety symptoms (OR = 5.652; 95% CI = 2.872–11.123; p < 0.001), depression (OR = 3.289; 95% CI = 1.810–5.978; p < 0.001) and stress (OR = 5.684; 95% CI = 3.120–10.355; p < 0.001) with occurrence of sleep problems during the period of social distancing. There was a protective factor provided by regular physical exercise in relation to depressive symptoms (OR = 0.490; 95% CI = 0.250–0.960; p =0.033). These data are extremely important for understanding the adverse effect on the mental health of students and for developing psychological support strategies, thus promoting well-being during and after the pandemic.

Latent structure evidence of the Depression, Anxiety and Stress Scales - Short Form

Abstract This study aimed to investigate the psychometric properties of the Depression, Anxiety and Stress Scales - Short Form in a Brazilian sample. The instrument was answered online by 250 university students. The following models were tested through Confirmatory Factor Analysis: one-dimensional, three oblique factors, hierarchical, and bifactor. The estimated indices showed a better adjustment for a bifactor model composed of three specific factors and one global factor. Additional statistical analysis, such as explained common variance and omega hierarchical estimates, indicated that the measure is predominantly one-dimensional. The results also indicated evidence of convergent validity (Average Extracted Variance between 0.48 and 0.60), internal consistency (Cronbach's alpha between 0.87 and 0.94) and temporal reliability of the instrument (Intraclass Correlation Coefficient between 0.64 and 0.74).

Problematic Internet Use, Emotional Problems and Quality of Life Among Adolescents

Abstract This study aimed to evaluate the prevalence of Problematic Internet Use (PIU) among adolescents (N = 466) and its possible association with emotional problems and quality of life. Students (Mage = 12.8 years; SD = 1.9) from five public schools in a city in the State of São Paulo participated in this study and completed four instruments: a sociodemographic questionnaire; Internet Addiction Test (IAT); Depression Anxiety Stress Scale (DASS-21) and Pediatric Quality of Life Inventory (PedsQL). No significant differences were detected about the frequency and intensity of symptoms of depression, anxiety, and stress compared to those who did not have problems with the use of the Internet. No differences were observed between the groups in respect of quality of life either. However, those individuals who felt that their internet use impaired their daily activities presented higher average IAT scores and higher levels of stress. These findings indicated that the perception of internet use was the main variable associated with emotional symptoms.

School Performance and Symptoms of Depression, Anxiety, and Stress in Adolescents

Abstract The objective of this study was to verify the correlation between school performance and symptoms of depression, anxiety, and stress in 432 public school students aged from 15 to 18 years. The instruments used were a sociodemographic datasheet, Escala de Depressão, Ansiedade e Estresse (EDAE-A), and the grades in the courses/areas of interest of three school trimesters. Descriptive analyses, as well as the Mann-Whitney U test and Spearman's correlation test, were conducted. A weak and negative correlation was found between school performance and anxiety and depression symptoms, with the adolescents from full-time schools presenting better performance and fewer symptoms of depression and anxiety than those in regular schools. Younger adolescents presented more stress symptoms, while female adolescents have more depression and anxiety symptoms.

Psychometric Properties of the Environmental Reward Observation Scale: Study on Its Internal Structure, Factor Invariance, and Method Effect Associated With Its Negative Items

The aim of this study was to assess the factorial structure of the scale, the method's effect associated with its negative items, its temporal invariance, and factorial invariance according to sex. For this purpose, three samples were collected, an initial sample of 200 participants, a second sample of 461 participants and a third sample of 107 participants; making a total of 768 Peruvian university students. Other instruments were applied together with the EROS scale in order to measure satisfaction with life, anxiety, stress and depression. Regarding the results, in the initial sample it was found that the original scale containing positive and negative items does adequately fit the data (RMSEA = .19; CFI = .77; TLI = .71) and also evidence was found supporting the existence of a methodological effect associated with the negative items. It was also found that version B of the scale which only has positive items data fits the data (RMSEA = .13; CFI = .96; TLI = .95). In the second sample it was found that version B still had a good fit to the data in a larger sample (RMSEA = .07; CFI = .98; TLI = .98). In addition, it was found that the scale can be considered invariant according to sex and presents validity based on other constructs. In the third sample it was found that the test-retest reliability of the scale was adequate (.70 [CI95% .593-.788]) and also evidence was found in favor of the temporal invariance of the scale. It is concluded that the scale formed only by positive items presents more robust psychometric properties and constitutes a better alternative to measure the level of reward provided by the environment.

Latent profile analysis of exercise addiction symptoms in Brazilian adolescents: Association with health-related variables

BACKGROUND

The purpose of the present study is to identify profiles of adolescent exercisers based on exercise addiction symptoms (EA), and to examine differences in several health-related variables potentially related to EA across these profiles.

METHODS

A sample consisting of 618 adolescents, aged from 13 to 17 years, completed a questionnaire assessing EA, exercise characteristics (i.e., frequency and intensity of exercise), depression, body image (i.e., body appreciation and social physique anxiety), and disordered eating (i.e., concerns about eating and body weight gain as well as restrictive and compensatory practices).

RESULTS

The profile analysis identified three EA profiles, which were labelled: low-risk, high-risk with conflict and high-risk without conflict. Based on their scores for the health-related variables considered, the low-risk profile emerged as the least problematic; this increasing in the high-risk without conflict and even more so in the high-risk with conflict profiles. Nevertheless, individuals belonging to the high-risk without conflict profile showed similar body appreciation scores but lower social physique anxiety scores than those belonging to the low-risk profile.

LIMITATIONS

The study is limited by both its cross-sectional design and the self-reported nature of the collected data.

CONCLUSIONS

Conflict symptom may be relevant in explaining the differences in certain health-related variables between adolescents showing similarly high levels of EA.

Vítimas de bullying, sintomas depressivos, ansiedade, estresse e ideação suicida em adolescentes

Objetivou-se verificar a correlação entre ser vítima de bullying, ter sintomas depressivos, de ansiedade, de estresse e ideação suicida em adolescentes. Além disso, foi identificado se havia diferença nos construtos investigados, por gênero e idade. Estudo quantitativo transversal, do qual participaram 117 adolescentes. Utilizaram-se os instrumentos: questionário sociodemográfico, Escala Califórnia de Vitimização do Bullying, Escala de Depressão, Ansiedade e Estresse, e Escala Beck de Suicídio. As análises foram realizadas por meio de estatística descritiva, correlação de Spearman e teste U de MannWhitney. Os resultados indicam que 48,71 % da amostra apresenta ideação suicida. Houve correlação positiva entre ser vítima de bullying e ter sintomas depressivos, ansiedade e estresse, e ser vítima e ter ideação suicida. As meninas apresentam mais sintomas de estresse do que os meninos, e adolescentes mais novos são mais vítimas de bullying do que os mais velhos. Destaca-se, assim, a relevância da discussão desse tema, tanto nas escolas quanto nas famílias, a fim de diminuir o sofrimento psíquico das vítimas.

Escala de Depressão, Ansiedade e Estresse: propriedades psicométricas e prevalência das afetividades

RESUMO Objetivo: Estimar as características psicométricas da Escala de Depressão, Ansiedade e Estresse (DASS-21) para universitários e comparar as prevalências de depressão, ansiedade e estresse segundo o sexo. Métodos: Avaliou-se o ajustamento da DASS-21 aos dados por análise confirmatória utilizando os índices razão de qui-quadrado pelos graus de liberdade (χ2/gl), Comparative Fit Index (CFI), Tucker-Lewis Index (TLI) e Root Mean Square Error of Approximation (RMSEA). As prevalências de depressão, ansiedade e estresse foram calculadas e comparadas segundo o sexo. Resultados: Participaram 1.042 estudantes [idades entre 18 e 35 anos, com média de 21,13 anos (desvio-padrão = 2,81), 65,7% mulheres]. O ajustamento da DASS-21 à amostra foi adequado (χ2/gl = 5,83; CFI = 0,96; TLI = 0,97; RMSEA = 0,07), contudo o item 2 apresentou baixo peso fatorial, sendo, portanto, excluído (χ2/gl = 6,05; CFI = 0,98; TLI = 0,97; RMSEA = 0,07). Em relação ao grau de acometimento dos estudantes pela depressão, ansiedade e estresse, verificou-se que 4,7%, 1,7% e 4,5% dos estudantes apresentaram, respectivamente, escores moderados a extremamente severos. Não houve diferença significativa entre as prevalências dos estados emocionais avaliados segundo o sexo. Conclusão: A DASS-21 apresentou adequada validade e confiabilidade para amostra. A prevalência de depressão, ansiedade e estresse foi semelhante entre homens e mulheres, apontando para a necessidade de um olhar igualitário na investigação desses estados emocionais.