title: IQ predicts neuropsychological performance in children.
abstract: BACKGROUND
  This study examined whether IQ predicts neuropsychological performance among children with varying ability levels.
  
  
  METHODS
  177 children/adolescents were subdivided as Below Average (BA; N = 71; IQ = 60-85), Average (A; N = 72; IQ = 90-110), or Above Average (AA; N = 34; IQ = 115-140) in IQ. Assessments included intelligence, achievement, memory, and executive functioning measures.
  
  
  RESULTS
  Group differences were found on all tests (p < .001). Planned comparisons revealed differences between BA and A on seven variables, and between A and AA on five variables with small-to-medium effect sizes. Correlations were found between IQ and neuropsychological functioning and varied by group membership.
  
  
  CONCLUSIONS
  In children, IQ predicts neuropsychological performance differentially based upon ability level, with stronger relationships shown in lower IQ ranges.
authors.affiliation: Department of Psychiatry and Biobehavioral Sciences, UCLA David Geffen School of Medicine, Semel Institute for Neuroscience and Human Behavior, Los Angeles, CA, USA. jfoley@mednet.ucla.edu
authors.forename: Jessica
authors.initials: J
authors.lastname: Foley
authors.forename: Jessica
authors.initials: J
authors.lastname: Garcia
authors.forename: Lindsay
authors.initials: L
authors.lastname: Shaw
authors.forename: Charles
authors.initials: C
authors.lastname: Golden
mesh_terms: D000293:Adolescent; D001288:Attention; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D003072:Cognition Disorders / Q000175:diagnosis* / Q000503:physiopathology* / Q000523:psychology; D004522:Educational Status; D005260:Female; D006801:Humans; D007360:Intelligence / Q000502:physiology*; D007858:Learning / Q000502:physiology; D008297:Male; D009048:Motor Skills; D015999:Multivariate Analysis; D009483:Neuropsychological Tests; D011237:Predictive Value of Tests; D011340:Problem Solving; D011569:Psychiatric Status Rating Scales; D013223:Statistics as Topic