title: Wechsler Intelligence Scale for Children-fourth edition (WISC-IV) short-form validity: a comparison study in pediatric epilepsy.
abstract: OBJECTIVE
  The purpose of this article was to investigate the accuracy of the WISC-IV short forms in estimating Full Scale Intelligence Quotient (FSIQ) and General Ability Index (GAI) in pediatric epilepsy.
  
  
  METHODS
  One hundred and four children with epilepsy completed the WISC-IV as part of a neuropsychological assessment at a tertiary-level children's hospital. The clinical accuracy of eight short forms was assessed in two ways: (a) accuracy within +/- 5 index points of FSIQ and (b) the clinical classification rate according to Wechsler conventions. The sample was further subdivided into low FSIQ (≤ 80) and high FSIQ (> 80).
  
  
  RESULTS
  All short forms were significantly correlated with FSIQ. Seven-subtest (Crawford et al. [2010] FSIQ) and 5-subtest (BdSiCdVcLn) short forms yielded the highest clinical accuracy rates (77%-89%). Overall, a 2-subtest (VcMr) short form yielded the lowest clinical classification rates for FSIQ (35%-63%). The short form yielding the most accurate estimate of GAI was VcSiMrBd (73%-84%).
  
  
  CONCLUSIONS
  Short forms show promise as useful estimates. The 7-subtest (Crawford et al., 2010) and 5-subtest (BdSiVcLnCd) short forms yielded the most accurate estimates of FSIQ. VcSiMrBd yielded the most accurate estimate of GAI. Clinical recommendations are provided for use of short forms in pediatric epilepsy.
authors.affiliation: a Alberta Health Services and Alberta Children's Hospital Research Institute , Calgary , Alberta , Canada.
authors.forename: Marianne
authors.initials: M
authors.lastname: Hrabok
authors.forename: Brian L
authors.initials: BL
authors.lastname: Brooks
authors.forename: Taryn B
authors.initials: TB
authors.lastname: Fay-McClymont
authors.forename: Elisabeth M S
authors.initials: EM
authors.lastname: Sherman
mesh_terms: D002648:Child; D004827:Epilepsy / Q000523:psychology*; D005260:Female; D006801:Humans; D007360:Intelligence; D008297:Male; D009483:Neuropsychological Tests; D011237:Predictive Value of Tests; D014888:Wechsler Scales