Internal consistency of the Strengths and Difficulties Questionnaire in Amazonian children

OBJECTIVE

To describe the frequency of behavioral problems and the internal consistency of the parent version of the Strengths and Difficulties Questionnaire (SDQ-P) in Amazonian preschool children during the covid-19 pandemic.

METHODS

Data from the Maternal and Child Health and Nutrition in Acre (MINA-Brazil) study, a population-based birth cohort in the Western Brazilian Amazon, were used. The SDQ-P was applied in 2021 at the five-year follow-up visit to parents or caregivers of 695 children (49.4% of which were girls). This instrument is a short behavioral screening questionnaire composed of 25 items reorganized into five subscales: emotional symptoms, conduct problems, hyperactivity/inattention, peer relationship problems, and prosocial behavior. Cases of behavioral problems were defined according to the original SDQ cut-offs based on United Kingdom norms. Moreover, cut off points were estimated based on the SDQ-P percentile results of our study sample. Internal consistency was assessed by calculating Cronbach's alpha coefficient and McDonald's omega for each scale.

RESULTS

According to the cut-offs based on our studied population distribution, 10% of all children had high or very high total difficulty scores, whereas it was almost twice when the original SDQ cut-offs based on United Kingdom norms, were applied (18%). Differences were also observed in the other scales. Compared to girls, boys showed higher means of externalizing problem and lower means of prosocial behavior. The five-factor model showed a moderate internal consistency of the items for all scales (0.60 ≤ α ≤ 0.40), except for total difficulty scores, which it considered substantial (α > 0.61).

CONCLUSIONS

Our results support the usefulness of SDQ in our study population and reinforce the need for strategies and policy development for mental health care in early life in the Amazon.

Exploring Parenting Styles Patterns and Children's Socio-Emotional Skills

In this study, we adopted parenting styles as a multidimensional and latent construct that includes different aspects of parenting, rather than solely focusing on a single parenting style. In a Web-based survey with 1203 Greek parents, we identified parenting styles and their SDQ reports on their children. According to our results by Latent Profile Analysis, we must use a more complex approach concerning parenting styles. We identified a "Highly Authoritative style" profile with high levels of authoritative, low levels of authoritarian and middle levels of permissive parenting styles. We additionally identified a profile called "Relaxed Authoritative style", with still high but lower levels of authoritative style, low but slightly heightened levels of authoritarian style, and middle levels of permissive style. A further profile, named "Permissive Focused Authoritative style", had a mix of high levels of authoritative, moderate levels of permissive, and elevated levels of authoritarian parenting styles. Finally, in a profile named "Inconsistent Parenting style", we identified parents with a blend of still high, but the lowest of all four levels of authoritative and highest levels of permissive and authoritarian parenting styles. When combining the four identified parenting patterns with the SDQ results, we identified the "highly authoritative parenting style" profile to be the least connected to internalizing or externalizing problems of the respective children.

'You are Okay': Effects of a support and educational program for children with mild intellectual disability and their parents with mental health concerns

BACKGROUND

Children with mild intellectual disabilities and emotional and behavioural problems whose parents have mental health concerns are at an increased risk of developing problems themselves. This study analysed the effectiveness of the 'You are Okay'-program aimed to support these children and parents and to reduce the risk of problem development in children.

METHOD

A quasi-experimental design was used to compare the experimental group ('care as usual' and 'You are Okay') with the control group ('care as usual') on the main outcome of emotional and behavioural problems and proposed intermediate outcomes.

RESULTS

Children in the experimental group reported a significant medium to large decrease in emotional and behavioural problems compared to the control group. The effects on the intermediate outcomes were non-significant.

CONCLUSIONS

This specific study population comprising a vulnerable group of children seems to benefit from this specially adapted 'You are Okay'-program. More research is necessary to draw further conclusions.

Exploring the Factor Structure of the NIH Toolbox Cognition Battery in a Large Sample of 8-Year-Old Children in Aotearoa New Zealand

OBJECTIVE

The objective of this study was to derive a factor structure of the measures of the National Institutes of Health (NIH) Toolbox Cognition Battery (CB) that is representative of cognitive abilities in a large ethnically diverse cohort of 8-year-old children in Aotearoa New Zealand.

METHODS

Our sample comprised of 4298 8-year-old children from the Growing Up in New Zealand study. We conducted exploratory and confirmatory factor analysis for the NIH Toolbox CB measures to discover the best-fitting factor structure in our sample. Measurement invariance of the identified model was tested across child's gender, socio-economic status (SES), and ethnicity.

RESULTS

A three-dimensional factor structure was identified, with one factor of Crystallised Cognition (Reading and Vocabulary), and two distinguished factors of fluid cognition: Fluid Cognition I (Attention/Inhibitory Control, Processing Speed, and Cognitive Flexibility) and Fluid Cognition II (Working Memory, Episodic Memory). The results demonstrate excellent model fit, but reliability of the factors was low. Measurement invariance was confirmed for child's gender. We found configural, but neither metric nor scalar, invariance across SES and the four major ethnic groups: European, Māori, Pacific Peoples, and Asian.

CONCLUSION

Our findings show that, at the age of 8 years, fluid abilities are more strongly associated with one another than with crystallised abilities and that fluid abilities need to be further differentiated. This dimensional structure allows for comparisons across child's gender, but evaluations across SES and ethnicity within the Aotearoa New Zealand context must be conducted with caution. We recommend using raw scores of the individual NIH Toolbox CB measures in future research.

Who is Taking Care of Central American Immigrant Youth? Preliminary Data on Caregiving Arrangements and Emotional-Behavioral Symptoms Post-Migration

Migrant youth are at increased risk for mental health problems. Given increases in families migrating to the U.S. and family separations at the U.S.-Mexico border, understanding migrant youth home environments and impacts of family disruption are growing concerns. This study assessed caregiver arrangements and reports of youth emotional and behavioral symptoms from recently immigrated adolescents (N = 111) and respective caregivers (n = 64). 47.7% of youth indicated living with their mother, father, or both; 24.3% another relative, 2.7% a non-relative, and 25.2% reported no caregiver. 25% indicated caretaking responsibilities of their own. Caregiving arrangements were related to emotional and behavioral symptoms. Caregiver documentation status was related to caregiver-reported conduct problems, prosocial behavior, and total symptoms. The migration process is disruptive for youth and home environments. Many youth experience disrupted caregiving post-migration and caregiver features are significant to youth emotional and behavioral symptoms-which were elevated in this sample. The study provides novel insight into effects of family disruption on migrant youth post-migration.

Development and Examination of the Reactive Attachment Disorder and Disinhibited Social Engagement Disorder Assessment Interview

The fifth edition of the Diagnostic and Statistical Manual (DSM) categorizes reactive attachment disorder (RAD) and disinhibited social engagement disorder (DSED) as two separate disorders, and their criteria are revised. For DSED, the core symptoms focus on abnormal social disinhibition, and symptoms regarding lack of selective attachment have been removed. The core symptoms of RAD are the absence of attachment behaviors and emotional dysregulation. In this study, an international team of researchers modified the Child and Adolescent Psychiatric Assessment for RAD to update it from DSM-IV to DSM-5 criteria for RAD and DSED. We renamed the interview the reactive attachment disorder and disinhibited social engagement disorder assessment (RADA). Foster parents of 320 young people aged 11 to 17 years completed the RADA online. Confirmatory factor analysis of RADA items identified good fit for a three-factor model, with one factor comprising DSED items (indiscriminate behaviors with strangers) and two factors comprising RAD items (RAD1: failure to seek/accept comfort, and RAD2: withdrawal/hypervigilance). The three factors showed differential associations with clinical symptoms of emotional and social impairment. Time in foster care was not associated with scores on RAD1, RAD2, or DSED. Higher age was associated with lower scores on DSED, and higher scores on RAD1.

Personality Measurement and Profile in a European Sample of Civil Airline Pilots

Abstract. The study examined the psychometric properties of the Revised NEO Personality Inventory (NEO PI-R, UK edition) in a large European sample of civil airline pilots. The NEO PI-R is a comprehensive and robust measure of personality that has been validated across cultures and contexts. Furthermore, the personality profile of the pilot sample was examined and compared to a normative sample representing the UK working population. Data from 591 pilots (95.1% male) were collected. Analyses include the internal reliability and factorial validity (precisely, Exploratory Structural Equation Modeling) to examine the measurement equivalence of the NEO PI-R with reference to UK norms ( N = 1,301). Internal reliability estimates of the NEO PI-R scores were good at the domain level, but generally weak at the facet level. The structural model in the pilot sample was congruent with the general working population sample. Furthermore, there was convincing evidence for a distinct personality profile of civil pilots, although the stability of this profile will require further validation. The NEO PI-R’s validity in the assessment of general personality in civil airline pilots is discussed, along with implications of the results for the utility of personality assessment in civil aviation contexts.

Assessing the factor structure of the Spanish language parent Strengths and Difficulties Questionnaire (SDQ) in Honduras

With worldwide prevalence rates between 10% and 20%, mental illness in children and adolescents is an issue for which culturally sensitive screening tools are needed. The Strengths & Difficulties Questionnaire (SDQ) is a commonly used measure that has been translated into numerous languages, although some research suggests issues with cross-cultural validity. Only four other studies have tested the Spanish-language SDQ in Latin America. In this study, we aimed to help fill this gap by assessing the factor structure of the parent or teacher version of the Spanish-language SDQ (for children ages 4–17) with 967 parent or other caregiver respondents of primary school-aged children (ages 4 to 17) in the Department of Intibucá, Honduras. When unable to find a good fitting factor model previously identified in the literature, we conducted split sample exploratory factor analysis (EFA) and confirmatory factor analysis (CFA), along with measurement invariance testing with the best fitting EFA-extracted model based on gender for caregiver respondent and child gender. Results showed that while many EFA models had a good fit, CFI and TLI was < .90 for all extracted models when confirmed in the second sample with CFA. We then modified the best fitting extracted three-factor, 24-item model, which dropped item 15, by allowing select item residuals to correlate, increasing CFI and TLI to > .90 for female child gender. This modified three-factor model was partially invariant for configural and scalar models between child genders. Configural and scalar models would not converge for adult genders. Of note, metric models were not produced in Mplus related to items’ cross-loading on more than one factor. These findings suggest that the SDQ Spanish language parent or teacher version may not perform optimally cross-culturally in this area of Honduras. Future research should confirm these findings with other Honduran populations.

An Item Response Theory Analysis of the Strength and Difficulties Questionnaire (SDQ)

Abstract. The Strengths and Difficulties Questionnaire (SDQ) assesses five subscales for measuring child adjustment. In the present study, an item response theory approach was used to analyze the parent version of the SDQ subscales and the total difficulties score (TDS), which is obtained by summing up the scores of the four problem subscales. Analyses are based on two data sets: The German Family Panel “Panel Analysis of Intimate Relationships and Family Dynamics (pairfam, N = 1,078)” and the survey “Growing up in Germany” (Aufwachsen in Deutschland: Alltagswelten; AID:A, N = 1,346). Partial credit and generalized partial credit models were estimated for each subscale and a bifactor model was applied to the TDS. The results showed satisfying psychometric properties in both samples for each of the five subscales, except for the “Hyperactivity/Inattention” subscales which seemed to have a two-dimensional structure. Item discrimination and category threshold parameters were broadly comparable between the samples. According to the bifactor models, there is evidence for multidimensionality in the TDS, but the general factor was strong. Thus, the TDS can be treated as essentially unidimensional, although some subscales may be of additional value.

SDQ in the Hands of Fathers and Preschool Teachers-Psychometric Properties in a Non-clinical Sample of 3-5-Year-Olds

The Strengths and Difficulties Questionnaire (SDQ) is a well-established instrument for measuring social and behavioural problems among children, with good psychometric properties for older children, but less validity reports on pre-schoolers. In addition, there is a knowledge gap concerning fathers as informants. The present work is one of the few validity studies to include preschool teachers and the first on preschool children where fathers are included as separate informants. In this study, SDQs were collected from a large community sample (n = 17,752) of children aged 3-5, rated by mothers, fathers, and preschool teachers and analysed using confirmatory factor analysis. Our results revealed acceptable fit for all informant groups and measurement invariance across child gender, child age, and parental education level. Our findings suggest good construct validity of the SDQ for a non-clinical preschool population and imply that it may be used for assessing child behaviour problems from different informant perspectives.

Malaysian Parent Ratings of the Strengths and Difficulties Questionnaire: Factor Structure and Measurement Invariance Across Language Versions, Gender, Informants, and Race

For a Malaysian sample, the current study used exploratory factor analysis (EFA) to determine the best model for parent ratings of the Strengths and Difficulties Questionnaire (SDQ), and then multiple-group confirmatory factor analysis (MCFA) to confirm this model, and to examine measurement invariance across different language versions (Malay and English), child's gender (boys and girls), informants (mothers and fathers), and racial groups (Malay, Chinese, and Indians). In all 1,407 Malaysian parents completed SDQ ratings of their children (age ranging from 5 to 13 years). The EFA showed most support for a two-factor model oblique model, with factors for a positive construal factor and a psychopathology factor. CFA confirmed this model, and MCFA showed full measurement invariance (configural, metric. and scalar) across the groups in the different comparisons. For all comparisons, there were equivalencies for latent mean scores. The implications of the findings for clinical and research practice involving the SDQ in Malaysia are discussed.

Measurement Invariance of the Parent Version of the Strengths and Difficulties Questionnaire (SDQ) Across Community and Clinical Populations

Abstract. The Strengths and Difficulties Questionnaire (SDQ) is a popular screening instrument for the detection of social-emotional and behavioral problems in children in community and clinical settings. To sensibly compare SDQ scores across these settings, the SDQ should measure psychosocial difficulties and strengths in the same way across community and clinical populations, that is, the SDQ should be measurement invariant across both populations. We examined whether measurement invariance of the parent version of the SDQ holds using data from a community sample (N = 707) and a clinical sample (N = 931). The results of our analysis suggest that measurement invariance of the SDQ parent version across community and clinical populations is tenable, implying that one can compare the SDQ scores of children across these populations. This is a favorable result since it is common clinical practice to interpret the scores of a clinical individual relative to norm scores that are based on community samples. The findings of this study support the continued use of the parent version of the SDQ in community and clinical settings.

Messinvarianz zwischen Eltern- und Jugendversion des Strengths and Difficulties Questionnaire (SDQ)?

Zusammenfassung. Die interne Struktur des Strengths and Difficulties Questionnaire (SDQ) ist kontrovers diskutiert worden. Das erste Ziel der vorliegenden Studie bestand daher in der Überprüfung der internen Struktur der SDQ Jugend- und Elternversion. Auf Basis der Daten der ersten Wiederholungsbefragung der Studie zur Gesundheit von Kindern und Jugendlichen in Deutschland (KiGGS-Studie) wurde mittels konfirmatorischer Faktorenanalysen gezeigt, dass das Fünf-Faktoren-Modell eine gute Anpassungsgüte besitzt, wenn korrelierte Fehlervarianzen zwischen Items mit ähnlichem Inhalt zugelassen werden. Da Skalenmittelwerte aus der SDQ Jugend- und Elternversion häufig miteinander verglichen werden, wurde im zweiten Teil der Analyse geprüft, ob skalare Messinvarianz zwischen beiden SDQ-Versionen besteht. Die Ergebnisse der konfirmatorischen Multi-Gruppen-Faktorenanalysen zeigen, dass der SDQ bei Eltern und Jugendlichen die gleichen Konstrukte erfasst (konfigurale Messinvarianz). Skalare Messinvarianz liegt hingegen nur für 19 der 25 Items vor. Unterschiede in den latenten Skalenmittelwerten zwischen Jugendlichen und Eltern können daher entweder das Ergebnis von tatsächlichen Bewertungsunterschieden darstellen oder sie sind das Resultat der fehlenden skalaren Messinvarianz zwischen beiden SDQ-Versionen. Folglich sollten Unterschiede in den latenten Mittelwerten aus Eltern- und Selbstbeurteilungsversion für Jugendliche mit Vorsicht interpretiert werden.

Is Small Still Beautiful for the Strengths and Difficulties Questionnaire? Novel Findings Using Exploratory Structural Equation Modeling

During the present decade a large body of research has employed confirmatory factor analysis (CFA) to evaluate the factor structure of the Strengths and Difficulties Questionnaire (SDQ) across multiple languages and cultures. However, because CFA can produce strongly biased estimations when the population cross-loadings differ meaningfully from zero, it may not be the most appropriate framework to model the SDQ responses. With this in mind, the current study sought to assess the factorial structure of the SDQ using the more flexible exploratory structural equation modeling approach. Using a large-scale Spanish sample composed of 67,253 youths aged between 10 and 18 years (M = 14.16, SD = 1.07), the results showed that CFA provided a severely biased and overly optimistic assessment of the underlying structure of the SDQ. In contrast, exploratory structural equation modeling revealed a generally weak factorial structure, including questionable indicators with large cross-loadings, multiple error correlations, and significant wording variance. A subsequent Monte Carlo study showed that sample sizes greater than 4,000 would be needed to adequately recover the SDQ loading structure. The findings from this study prevent recommending the SDQ as a screening tool and suggest caution when interpreting previous results in the literature based on CFA modeling.

Do They Rate in the Same Way?

Abstract. The internal structure of the Strengths and Difficulties Questionnaire (SDQ) has been widely discussed in the literature. The first purpose of this study was, therefore, to analyze the internal structure of the SDQ as completed by German parents and teachers. Parents and teachers of 1,135 children between the ages of 3 and 6 years in German daycare facilities were asked to complete the SDQ. Using confirmatory factor analysis (CFA), we found that the original five-factor model with added correlations between items with similar content and allowing cross-loads of reverse-worded items to the prosocial behavior factor is the model that fits the data the best. Additionally, we found significant mean differences between parents and teachers in four of the five SDQ subscales. Nevertheless, to compare the scores across both groups, it is necessary that the SDQ measures social-emotional and behavioral difficulties for both parents and teachers in the same way. Hence, the second purpose of this study was to test for measurement invariance of the SDQ across both groups. Using multigroup confirmatory factor analysis (MGCFA), we found that strict measurement invariance is tenable. Therefore, the observed means of the SDQ scores from parents and teachers are readily comparable and interpretable.

Benefits of maternal education for mental health trajectories across childhood and adolescence

RATIONALE

Mental health problems in children and adolescents are widespread and are a primary public health concern worldwide. During childhood and adolescence different challenges must be met. Whether the corresponding developmental tasks can be mastered successfully and in a psychologically healthy manner depends on the availability of resources.

OBJECTIVE

The aim of the current study was to examine the benefits of maternal education on the development of mental health in children and adolescents.

METHOD

Data from 2810 participants (48.7% female, 7- to 19-years old) of the longitudinal BELLA study (mental health module of the representative German KiGGS study) were analyzed from up to four measurement points (2003-2012). Individual growth modeling was employed to estimate the benefits of maternal education (Comparative Analysis of Social Mobility in Industrial Nations, CASMIN) for the trajectories of mental health problems (parent-reported Strengths and Difficulties Questionnaire, SDQ) in children and adolescents.

RESULTS

Children of mothers with low education had significantly more mental health problems compared to children of mothers with high education. This difference due to maternal education applied for girls as well as boys and especially for participants who did not live with both biological parents. Further, the difference in mental health problems due to varying maternal education decreased with increasing age of the participants.

CONCLUSION

Prevention programs should focus on children of mothers with lower education who additionally live in single- or step-parent families as a high-risk group. Knowledge of the underlying mechanism between education and mental health is highly important.

The Strengths and Difficulties Questionnaire: Factor Structure of the Father-Report and Parent Agreement in 2-Year-Old Children

There is limited research on the preschool version of the Strengths and Difficulties Questionnaire (SDQ), and comparisons between mothers and fathers as informants and whether the factor structure shows measurement invariance across parents is lacking. Our study involved mothers (n = 6,246) and fathers (n = 3,759) of 2-year-old children from the Growing Up in New Zealand birth cohort. Confirmatory factor analysis was used to evaluate the factor structure of the SDQ and test for measurement invariance across mothers and fathers. For fathers, we found support for a modified five-factor model that accounts for a positive construal method effect. Internal consistency was good for measures except peer problems. Full measurement invariance of this modified model was found across mothers and fathers, and parents showed moderate agreement in their SDQ ratings (0.34 ≤ r ≤ 0.44). More research is needed on whether mother- and father-reports differ in sensitivity when screening for early childhood psychiatric disorders.

Parent Ratings of the Strengths and Difficulties Questionnaire: What Is the Optimum Factor Model?

To date, at least 12 different models have been suggested for the Strengths and Difficulties Questionnaire (SDQ). The current study used confirmatory factor analysis to examine the relative support for these models. In all, 1,407 Malaysian parents completed SDQ ratings of their children (age range = 5-13 years). Although the findings showed some degree of support for all 12 models, there was most support for an oblique six-factor model that included the five SDQ domains (emotional problems, conduct problems, hyperactivity, peer problems, and low prosocial behavior) and a positive construal factor comprising all the 10 SDQ positive worded items. The original proposed five-factor oblique model also showed good fit. The implications of the findings for understanding the results of past studies of the structural models of the parent version of the SDQ, and for clinical and research practice involving the SDQ are discussed.

The internal structure of foster-parent completed SDQ for school-aged children

Mental health problems are common in foster-children, and tools to measure the mental health of these children are needed. One candidate instrument is the Strengths and Difficulties Questionnaire (SDQ), a measure of child psychological adjustment that is increasingly being employed by Child Protection services. The aim of the current study was to examine the structural validity of the foster parent completed SDQ in a sample of 237 school aged foster children. Confirmatory factor analysis demonstrated an excellent fit of the foster parent completed SDQ data to a five-factor model (CFI = 0.96, RMSEA = 0.05, 90% CI [0.04, 0.06]), thus confirming the structural validity of the five-factor model for the parent-version of the SDQ in Norwegian foster children. Measurement invariance analyses indicated that boys had lower thresholds for fighting with or bullying other children than girls. Girls were on their side more likely to be rated as less popular than boys with a similar level of peer problems.

Factor Structure and Factorial Invariance of the Strengths and Difficulties Questionnaire among Children of Prisoners and their Parents

Parental imprisonment has been linked to a variety of adverse psychological outcomes for children and adolescents. The Strengths and Difficulties Questionnaire (SDQ) has been widely used to assess behavioural and emotional difficulties among 7-17 year olds in the general population and more recently has been utilised among samples of children of prisoners. Previous research has variously tested traditional one-, three- and five- factor solutions to the SDQ, and more recently one bifactor solution has been examined. Based on a sample of children of prisoners (N = 724) and their non-imprisoned parent or caregiver (N = 658), the aim of the present study was to simultaneously compare nine alternative factor structures, including previously tested models and alternative bifactor solutions. Tests of factorial invariance and composite reliability were also performed. The five-factor model was found to provide the best fit for the data. Tests of factorial invariance revealed that the five-factor model provided an equally acceptable, but not identical fit, among boys and girls. Composite reliability scores were low for the Conduct Problems and Peer Problems subscales. The utility of the SDQ in measuring psychological functioning in response to parental imprisonment is discussed.

Drive: Theory and Construct Validation

This article explicates the theory of drive and describes the development and validation of two measures. A representative set of drive facets was derived from an extensive corpus of human attributes (Study 1). Operationalised using an International Personality Item Pool version (the Drive:IPIP), a three-factor model was extracted from the facets in two samples and confirmed on a third sample (Study 2). The multi-item IPIP measure showed congruence with a short form, based on single-item ratings of the facets, and both demonstrated cross-informant reliability. Evidence also supported the measures' convergent, discriminant, concurrent, and incremental validity (Study 3). Based on very promising findings, the authors hope to initiate a stream of research in what is argued to be a rather neglected niche of individual differences and non-cognitive assessment.

The Strengths and Difficulties Questionnaire (SDQ): Factor Structure and Gender Equivalence in Norwegian Adolescents

Although frequently used with older adolescents, few studies of the factor structure, internal consistency and gender equivalence of the SDQ exists for this age group, with inconsistent findings. In the present study, confirmatory factor analysis (CFA) was used to evaluate the five-factor structure of the SDQ in a population sample of 10,254 16-18 year-olds from the youth@hordaland study. Measurement invariance across gender was assessed using multigroup CFA. A modestly modified five-factor solution fitted the data acceptably, accounting for one cross loading and some local dependencies. Importantly, partial measurement non-invariance was identified, with differential item functioning in eight items, and higher correlations between emotional and conduct problems for boys compared to girls. Implications for use clinically and in research are discussed.

Predicting a high rate of self-assessed and parent-assessed peer problems--Is it typical for students with disabilities?

Peer problems are common in children with special educational needs (SEN), but the reasons are poorly understood. This study aims to identify risk factors of peer problems (e.g., SEN, school setting, pro-social behaviour) for their occurrence. A subsample of 3900 children from the National Educational Panel Study in Germany was analysed. Children and parents answered the items of the Strengths and Difficulties Questionnaire (SDQ) subscales 'peer problems' and 'pro-social behaviour'. Students with SEN (attending special schools or inclusive classes) were more likely to score within the abnormal range of the SDQ subscale peer problems than students without SEN. The results further show a low level of parent-child agreement on the subscale 'peer problems'. Logistic regression analyses showed that having SEN is always an explaining variable for 'peer problems' and that group differences cannot be fully explained by gender, school setting or 'pro-social behaviour'.

The Strengths and Difficulties Questionnaire (SDQ) Revisited in a French-Speaking Population

Key concerns about the psychometric properties of the 25-item version of the Strengths and Difficulties Questionnaire (SDQ) have consistently been raised in the literature. The present study aimed at examining the meaningfulness of an alternative model to the SDQ in which 7 problematic items are excluded. French-speaking parents of 262 boys and 263 girls aged 6 to 16 years completed the SDQ. Through confirmatory factor analyses (CFAs), results provided support for a new, reduced, and psychometrically sound version of the SDQ called SDQ-R that displayed good factorial validity, construct validity, reliability, and multi-group invariance across gender. Overall, the attractive features of the SDQ-R make it a promising instrument for quickly screening emotional and behavioral problems in children and adolescents.

The Co-Development of Parenting Stress and Childhood Internalizing and Externalizing Problems

Although the detrimental influence of parenting stress on child problem behavior is well established, it remains unknown how these constructs affect each other over time. In accordance with a transactional model, this study investigates how the development of internalizing and externalizing problems is related to the development of parenting stress in children aged 4-9. Mothers of 1582 children participated in three one-year interval data waves. Internalizing and externalizing problems as well as parenting stress were assessed by maternal self-report. Interrelated development of parenting with internalizing and externalizing problems was examined using Latent Growth Modeling. Directionality of effects was further investigated by using cross-lagged models. Parenting stress and externalizing problems showed a decrease over time, whereas internalizing problems remained stable. Initial levels of parenting stress were related to initial levels of both internalizing and externalizing problems. Decreases in parenting stress were related to larger decreases in externalizing problems and to the (stable) course of internalizing problems. Some evidence for reciprocity was found such that externalizing problems were associated with parenting stress and vice versa over time, specifically for boys. Our findings support the transactional model in explaining psychopathology.

Multitrait-Multimethod Analysis of the Strengths and Difficulties Questionnaire in Young Asian American Children

The Strengths and Difficulties Questionnaire (SDQ) is a widely used psychopathology screening tool that measures children's emotional symptoms, peer problems, conduct problems, hyperactivity/inattention, and prosocial behavior. Previous psychometric studies of the SDQ focused primarily on older children in Western cultures and suffered from several methodological limitations. This study examined the reliability, factor structure, convergent, and discriminant validity of the SDQ by focusing on young Asian American children and using more rigorous methods. The five-factor structure of the SDQ was confirmed by confirmatory factor analysis. The ω coefficients indicated adequate reliability for all subscales except parent-rated peer problems and conduct problems. The correlated trait-correlated method minus one multitrait-multimethod model provided evidence for convergent validity and discriminant validity of all subscales except for conduct problems relative to hyperactivity/inattention. This study provided new evidence for the psychometric properties of the SDQ in young children and cultural suitability of the SDQ for Asian Americans.

Validity of the strengths and difficulties questionnaire in preschool-aged children

BACKGROUND

The Strengths and Difficulties Questionnaire (SDQ) is widely used to screen for child mental health problems and measure common forms of psychopathology in 4- to 16-year-olds. Using longitudinal data, we examined the validity of a version adapted for 3- to 4-year-olds.

METHODS

We used SDQ data from 16,659 families collected by the Millennium Cohort Study, which charts the development of children born throughout the United Kingdom during 2000-2001. Parents completed the preschool SDQ when children were aged 3 and the standard SDQ at ages 5 and 7. The SDQ's internal factor structure was assessed by using confirmatory factor analysis, with a series of competing models and extensions used to determine construct, convergent, and discriminant validity and measurement invariance over time. Predictive validity was evaluated by examining the relationships of age 3 SDQ scores with age 5 diagnostic measures of attention-deficit/hyperactivity disorder, autism spectrum disorder/Asperger syndrome, and teacher-reported measures of personal, social, and emotional development.

RESULTS

Confirmatory factor analysis supported a 5-factor measurement model. Internal reliability of subscales ranged from ω = 0.66 (peer problems) to ω = 0.83 (hyperactivity). Item-factor structures revealed measurement invariance over time. Strong positive correlations between ages 3 and 5 SDQ scores were not significantly different from correlations between age 5 and 7 scores. Conduct problems and hyperactivity subscales independently predicted developmental and clinical outcomes 2 years later.

CONCLUSIONS

Satisfactory psychometric properties of the adapted preschool version affirm its utility as a screening tool to identify 3- to 4-year-olds with emotional and behavioral difficulties.

A prospective study of behavioral and emotional symptoms in preschoolers

A substantial number of preschool children exhibit psychological symptoms that have an impact on their own and their families' lives. The aim of the current study was to investigate the prevalence, stability and increase/decrease in emotional and behavioral symptoms and the resultant impairment at two assessment points at preschool age. The sample consisted of 1,034 children drawn from the general population with a mean age of 51 months at t1 and 72 months at t2. Parents completed the Strengths and Difficulties Questionnaire extended version (Goodman, J Child Psychol Psychiatry 38(5):581-586, 1997; Goodman, J Child Psychol Psychiatry 40(5):791-799, 1999). At t1, 6.9 % of the preschoolers had a total difficulties and 6.8 % a total impact score within the abnormal range. At t2, these scores were 5.7 and 6.2 %, respectively. We found moderate stability of symptoms. From t1 to t2, emotional symptoms and prosocial behavior significantly increased, while hyperactivity, conduct problems, peer problems and total difficulties decreased. The mean total impact score did not change. Boys showed higher levels of symptoms (except emotional symptoms) and impact, and lower prosocial behavior, than girls. Moreover, there was a significant time × gender interaction, with girls showing a larger decrease in hyperactivity/inattention and in total difficulties than boys. The stepwise multiple regression analysis revealed that the total impact score at baseline, male gender, conduct problems, hyperactivity and peer problems significantly contributed to the explained variance of the total impact score at follow-up. This is one of very few studies to examine the stability and change of psychological symptoms in a large community sample of preschoolers, assessed twice during preschool age.

The Strengths and Difficulties Questionnaire: psychometric properties of the parent and teacher version in children aged 4-7

Background

The Strengths and Difficulties Questionnaire is one of the most employed screening instruments. Although there is a large research body investigating its psychometric properties, reliability and validity are not yet fully tested using modern techniques. Therefore, we investigate reliability, construct validity, measurement invariance, and predictive validity of the parent and teacher version in children aged 4–7. Besides, we intend to replicate previous studies by investigating test-retest reliability and criterion validity.

Methods

In a Dutch community sample 2,238 teachers and 1,513 parents filled out questionnaires regarding problem behaviors and parenting, while 1,831 children reported on sociometric measures at T1. These children were followed-up during three consecutive years. Reliability was examined using Cronbach’s alpha and McDonald’s omega, construct validity was examined by Confirmatory Factor Analysis, and predictive validity was examined by calculating developmental profiles and linking these to measures of inadequate parenting, parenting stress and social preference. Further, mean scores and percentiles were examined in order to establish norms.

Results

Omega was consistently higher than alpha regarding reliability. The original five-factor structure was replicated, and measurement invariance was established on a configural level. Further, higher SDQ scores were associated with future indices of higher inadequate parenting, higher parenting stress and lower social preference. Finally, previous results on test-retest reliability and criterion validity were replicated.

Conclusions

This study is the first to show SDQ scores are predictively valid, attesting to the feasibility of the SDQ as a screening instrument. Future research into predictive validity of the SDQ is warranted.

Electronic supplementary material

The online version of this article (doi:10.1186/s40359-015-0061-8) contains supplementary material, which is available to authorized users.