Purpose: Early onset of behavioral disorders is predictive of long term adverse outcomes. There are some indicated and selective early prevention programs for attention deficit/hyperactivity disorder (ADHD), one of the most common behavioral disorders in childhood and adolescence. The purpose of this paper is to present a universal preschool…

Investigated the relative effects of developmental level and domain-specific knowledge on 4- to 9-year-olds' ability to identify and make similarity decisions about objects based on haptic or tactile information. Found that older children explored models more exhaustively, found more differentiating features, and made fewer errors than younger…