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Bullock, Bernadette Marie; Deater-Deckard, Kirby; Leve, Leslie D. – Journal of Abnormal Child Psychology, 2006
This study uses a multitrait, multimethod (MTMM) approach to investigate the genetic and environmental etiologies of childhood deviant peer affiliation (DPA) and problem behavior (PROB). The variability of genetic and environmental estimates by agent and method is also examined. A total of 77 monozygotic and 72 dizygotic twin pairs and each twin's…
Descriptors: Behavior Problems, Genetics, Environmental Influences, Multitrait Multimethod Techniques
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Greenbaum, Paul E.; And Others – Psychological Assessment, 1994
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…
Descriptors: Adolescents, Behavior Problems, Children, Construct Validity