title: Correlation between the Cogstate computerized measure and WAIS-IV among birth cohort mothers.
abstract: OBJECTIVE
  Large studies, with limited resources call for cost-effective cognitive assessment methods. Computerized tests offer viable alternatives but more data are needed on their functioning. Our aim was to evaluate the overlap between a computerized neuropsychological test battery and a traditional test of general intelligence (IQ).
  
  
  METHODS
  Cognitive functioning was assessed in birth cohort mothers (n = 80) with two widely used methods: Cogstate, computerized test battery, and WAIS-IV, a traditional IQ test. Correlational analyses were conducted.
  
  
  RESULTS
  We found weak-to-moderate correlations between the measures, except for verbal comprehension. The indices of overall performance showed more consistent correlations than Subtests.
  
  
  CONCLUSIONS
  The overall correlations were in accordance with earlier studies. Cogstate is relatively independent of verbal comprehension abilities. The choice of the cognitive assessment method should be strongly guided by the research question. More studies are needed to evaluate the applicability of the Cogstate Composite Score in cognitive screening.
authors.affiliation: Department of Psychology, University of Turku, Finland.|The FinnBrain Birth Cohort Study, Turku Brain and Mind Center, Department of Clinical Medicine, University of Turku, Finland.
authors.forename: Eeva-Leena
authors.initials: EL
authors.lastname: Kataja
authors.affiliation: The FinnBrain Birth Cohort Study, Turku Brain and Mind Center, Department of Clinical Medicine, University of Turku, Finland.|Department of Child Psychiatry, Turku University Hospital and University of Turku, Finland.
authors.forename: Linnea
authors.initials: L
authors.lastname: Karlsson
authors.affiliation: The FinnBrain Birth Cohort Study, Turku Brain and Mind Center, Department of Clinical Medicine, University of Turku, Finland.|Department of Community Dentistry, University of Turku, Finland.
authors.forename: Mimmi
authors.initials: M
authors.lastname: Tolvanen
authors.affiliation: Department of Psychiatry, University of Oxford, UK.|Center for Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, Denmark.
authors.forename: Christine
authors.initials: C
authors.lastname: Parsons
authors.affiliation: RMIT University, Melbourne, Australia.|CogState Ltd., Melbourne, Australia.
authors.forename: Adrian
authors.initials: A
authors.lastname: Schembri
authors.affiliation: Department of Psychology, University of Turku, Finland.
authors.forename: Hanna
authors.initials: H
authors.lastname: Kiiski-Mäki
authors.affiliation: The FinnBrain Birth Cohort Study, Turku Brain and Mind Center, Department of Clinical Medicine, University of Turku, Finland.|Department of Psychiatry, University of Turku, Finland.
authors.forename: Hasse
authors.initials: H
authors.lastname: Karlsson
mesh_terms: D000328:Adult; D003072:Cognition Disorders / Q000175:diagnosis*; D015331:Cohort Studies; D005260:Female; D006801:Humans; D007361:Intelligence Tests; D009035:Mothers / Q000523:psychology*; D009483:Neuropsychological Tests; D009716:Numerical Analysis, Computer-Assisted; D011247:Pregnancy; D013223:Statistics as Topic; D055815:Young Adult
keywords: Assessment; Executive functions; Intelligence