One of the most consistent findings in rating scale research with children and adolescents is the modest agreement among different informants' ratings. The present study systematically explored patterns of agreement among teachers, parents/caregivers, and students in domains of social skills and problem behaviors using the Social Skills…

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…

Ambulatory biosensor assessment includes a diverse set of rapidly developing and increasingly technologically sophisticated strategies to acquire minimally disruptive measures of physiological and motor variables of persons in their natural environments. Numerous studies have measured cardiovascular variables, physical activity, and biochemicals…