Background: Changes in reward processing are thought to be involved in the etiology of attention-deficit/hyperactivity disorder (ADHD), as well as other developmental disorders. In addition, different forms of therapy for ADHD rely on reinforcement principles. As such, improved understanding of reward processing in ADHD could eventually lead to…

This study of elementary-level students compared behavioral patterns of 27 children showing a low nonverbal/high verbal (LNV) intelligence test profile and 38 children with a low verbal/high nonverbal (LV) profile. Results confirmed earlier findings that LNV children are perceived by teachers as significantly poorer than LV children in many…

This article examines whether various cognitive abilities are associated with symptoms of ADHD. Cognitive ability is conceptualized using Cattell-Horn-Carroll (CHC) theory as measured using the Woodcock-Johnson Tests of Cognitive Ability (3rd ed.). This article also examines whether test session behavior mediates the association between cognitive…

The use of the Wechsler Intelligence Scale for Children, Third Edition (WISC-III) and its interpretation in educational use are discussed. To measure intelligence, Wechsler believed one must measure the various aptitudes that contribute to the total behavior of the individual. The WISC-III has six verbal subtests and seven performance subtests.…