| Abstract: | This study examined the construct validity and diagnostic utility of the Wechsler Intelligence Scale for Children—Third Edition (WISC-III; Wechsler, 1991) Freedom From Distractibility (FFD) factor within a sample of 40 clinic-referred children having attention deficit hyperactivity disorder (ADHD). For the group as a whole, the FFD factor index score was significantly lower than either the Verbal Comprehension (VC) or Perceptual Organization (PO) factor index scores. Group-level correlational analyses also revealed significant associations between the FFD factor and teacher ratings of inattention. Nevertheless, when analyzed at an individual level, the FFD factor was not significantly lower than either the VC or PO factors for a substantial number of children and so may not be suitable for identifying children with ADHD. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
