title: A national study on the development of visual attention using the cognitive assessment system.
abstract: OBJECTIVE
  Developmental changes in the performance of children and adolescents are studied using the Cognitive Assessment System (CAS) which is an individually administered test of 4 basic cognitive processes.
  
  
  METHODS
  The test measures the Planning, Attention, Simultaneous, and Successive (PASS) processes as a theory of intelligence that can provide the framework for an alternative to traditional IQ tests. The CAS, which includes a scale of attention comprising 3 subtests, each of which is presented visually, provides an opportunity to study the development of visual attention for 2,200 children and adolescents aged 5- to 17-years-old who participated in the national standardization sample. A subsample ( n = 1,395) is also administered the Woodcock-Johnson Tests of Achievement - Revised (WJ-R).
  
  
  RESULTS
  On all 3 CAS attention subtests, the mean scores improve with age, and the rate of change between adjacent age groups is moderate-to-large up to 15-years-old. At all ages the CAS Attention standard score is moderately related to WJ-R Achievement Cluster scores.
  
  
  CONCLUSIONS
  The results are discussed in light of conclusions about the development of attention based on the standardization sample of the NEPSY-A Developmental Neuropsychological Assessment.
authors.affiliation: George Mason University, Fairfax,VA 22030, USA. elehman@gmu.edu
authors.forename: Elyse Brauch
authors.initials: EB
authors.lastname: Lehman
authors.forename: Jack A
authors.initials: JA
authors.lastname: Naglieri
authors.forename: Sally A
authors.initials: SA
authors.lastname: Aquilino
mesh_terms: D000293:Adolescent; D041923:Adolescent Development / Q000502:physiology*; D000704:Analysis of Variance; D001288:Attention / Q000502:physiology*; D002648:Child; D002657:Child Development / Q000502:physiology*; D002675:Child, Preschool; D003071:Cognition / Q000502:physiology*; D006801:Humans; D009483:Neuropsychological Tests; D014481:United States; D014796:Visual Perception / Q000502:physiology*