A Dutch translation of the Strengths and Difficulties Questionnaire (SDQ) was made. In the first wave of data collection, self-report data of 11- to 16-yearolds (N = 970) were collected on the SDQ and other measures of psychopathology. In the second wave of data collection, extended versions of the SDQ were completed by 11- to 16-year-olds (N = 268), by parents of 8- to 16-year-olds (N = 300) and by teachers of 8- to 12-year-olds (N = 208); in addition, the Child Behaviour Checklist (CBCL) was completed by the parents and the Youth Self Report (YSR) by the 11- to 16-year-olds. The results reveal that the internal consistency of the teacher SDQ is good; and the parent and self-report SDQ are generally acceptable and comparable with the internal consistencies of CBCL/YSR. The mean inter-informant product-moment correlations of the SDQ scales were satisfactory (parent-teacher 0.38; teacher-self-report 0.27; parent-self-report 0.35) and comparable with the mean inter-informant correlations of the CBCL and YSR (0.34). The inter-informant rank correlations of the impact questions were also satisfactory (mean parent-teacher 0.48; mean parent-self-report 0.24). Concurrent validity with the other measures of psychopathology used in the present study was good.
The expression of social evaluation fears during adolescence appears not atypical and might be a corollary of socio-cognitive maturation. At the same time, the natural presence of those fears during adolescence appears to constitute a vulnerability for developing a social anxiety disorder.
Results of past factor analytic studies of the Childhood Anxiety Sensitivity Index and Anxiety Sensitivity Index were used to formulate hypotheses about factor models of anxiety sensitivity. Using a nonclinical sample of 767 children and adolescents and confirmatory factor analysis, hypothesized models with 2, 3, and 4 lower order factors (facets) were tested. Goodness-of-fit criteria indicated that a model with 4 facets fits these data well. Support was found for factorial invariance of the 4 facets across age and gender, using nonclinical and clinical samples. Results support a hierarchical factor model in that there was a strong general factor, explaining 71% of the variance. Findings are discussed in the context of anxiety sensitivity theory and research with children and adolescents.
Findings suggest a high prevalence of psychopathology in the population studied and argue for a special focus on the early detection of significant emotional and behavioral problems as well as a multi-informant approach to the assessment of disorder in deaf children and adolescents. The correlational findings support the view that it is not deafness per se that contributes to psychiatric problems.
OBJECTIVES. This study examined the factor structure of the self-report Strengths and Difficulties Questionnaire, paying special attention to the number of factors and to negative effects of reverse-worded items and minor factors within the subscales on model fit. Furthermore, factorial invariance across gender, age, level of education, and ethnicity was investigated. DESIGN. Data were obtained from the Youth Health Monitor Rotterdam, a community-based health surveillance system. METHODS. The sample consisted of 11,881 pupils of 11-16 years old. Next to the original five-factor model, a factor model with the number of factors based on parallel analysis and scree test was investigated. Confirmatory factor analysis for ordered-categorical measures was applied to examine the goodness-of-fit and factorial invariance of the factor models. RESULTS. After allowing reverse-worded items to cross-load on the prosocial behaviour factor and adding error correlations, a good fit to the data was found for the original five-factor model (emotional symptoms, conduct problems, hyperactivity-inattention, peer problems, prosocial behaviour) and a model with four factors (emotional symptoms and peer problems, conduct problems, hyperactivity-inattention, prosocial behaviour). Factorial invariance across gender, age, level of education, and ethnicity was found for the final five- and four-factor model, except for the prosocial factor of the four-factor model that showed partial invariance across gender. Conclusions. While support was found for both models, the final five-factor model is theoretically more plausible and gained additional support as the original scales emotional problems and peer problems showed different relations with gender, educational level, and ethnicity.
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