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      Reliability and validity of the Strengths and Difficulties Questionnaire in Greek adolescents and their parents

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          Psychometric Properties of the Parent and Teacher Versions of the Strengths and Difficulties Questionnaire for 4- to 12-Year-Olds: A Review

          Since its development, the Strengths and Difficulties Questionnaire (SDQ) has been widely used in both research and practice. The SDQ screens for positive and negative psychological attributes. This review aims to provide an overview of the psychometric properties of the SDQ for 4- to 12-year-olds. Results from 48 studies (N = 131,223) on reliability and validity of the parent and teacher SDQ are summarized quantitatively and descriptively. Internal consistency, test–retest reliability, and inter-rater agreement are satisfactory for the parent and teacher versions. At subscale level, the reliability of the teacher version seemed stronger compared to that of the parent version. Concerning validity, 15 out of 18 studies confirmed the five-factor structure. Correlations with other measures of psychopathology as well as the screening ability of the SDQ are sufficient. This review shows that the psychometric properties of the SDQ are strong, particularly for the teacher version. For practice, this implies that the use of the SDQ as a screening instrument should be continued. Longitudinal research studies should investigate predictive validity. For both practice and research, we emphasize the use of a multi-informant approach.
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            The Strengths and Difficulties Questionnaire (SDQ)--further evidence for its reliability and validity in a community sample of Dutch children and adolescents.

            This study was a first attempt to examine the psychometric properties of the Strengths and Difficulties Questionnaire (SDQ) in Dutch youths. A large sample of normal children and adolescents ( N = 562) and their parents completed the SDQ along with a number of other psychopathology measures. Factor analysis of the SDQ yielded five factors that were in keeping with the hypothesised subscales of hyperactivity-inattention, emotional symptoms, peer problems, conduct problems, and prosocial behaviour. Furthermore, internal consistency, test-retest stability, and parent-youth agreement of the various SDQ scales were acceptable. Finally, the concurrent validity of the SDQ was good: that is, its scores correlated in a theoretically meaningful way with other measures of psychopathology. It can be concluded that the psychometric properties of the parent- and self-report version of the SDQ were satisfactory in this Dutch community sample. Moreover, the current data provide further support for the utility of the SDQ as an index of psychopathological symptoms in youths.
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              Dutch version of the Strengths and Difficulties Questionnaire (SDQ).

              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.
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                Author and article information

                Journal
                Health
                Health
                Scientific Research Publishing, Inc,
                1949-4998
                1949-5005
                2013
                2013
                : 05
                : 11
                : 1774-1783
                Article
                10.4236/health.2013.511239
                d5431b1f-3204-482d-b883-84b2d56b9de9
                © 2013

                http://creativecommons.org/licenses/by/4.0/

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