The present study examines the construct validity of separation anxiety disorder (SAD), social phobia (SoP), panic disorder (PD), and generalized anxiety disorder (GAD) in a clinical sample of children. Participants were 174 children, 6 to 17 years old (94 boys) who had undergone a diagnostic evaluation at a university hospital based clinic.…

The analysis of convergent and discriminant validity is an integral part of the construct validation process. Models for analyzing the convergent and discriminant validity have typically been developed for cross-sectional data. There exist, however, only a few approaches for longitudinal data that can be applied for analyzing the construct…

Method effects as a source of construct invalidity were evaluated for parent, teacher, and child ratings of problem behaviors among 489 children and adolescents with serious emotional disturbances. Multitrait multimethod analysis indicated large method effects for each rater. Such effects may be measurement artifact, situational differences, or…

The construct validities of the Self Description Questionnaire I, the Perceived Social Competence Scale, and the Multidimensional Measure of Children's Perceptions of Control were assessed, using 508 seventh through ninth graders in Sydney (Australia). Factor analysis, multitrait-multimethod analyses, and patterns of correlations with additional…