Evaluating convergent and discriminant validity of temperament questionnaires for preschoolers, toddlers, and infants.

Abstract

Convergent and discriminant validity were examined for 8 widely used preschooler, toddler, and infant temperament questionnaires in a cross-sectional design that included both mothers and day-care teachers as respondents. The analysis focused on activity level, negative emotionality, and approach-sociability