title: Evaluating working memory: Comparing change-detection tasks and Wechsler working memory subtests in school-age children.
abstract: Among a number of methods for assessing working memory (WM), span tasks have been commonly utilized in clinical psychology, whereas change-detection tasks are often used in experimental or cognitive psychology. This study sought to understand the use of change-detection tasks in children and to evaluate the relationship between change-detection tasks and clinical WM measures in the Wechsler Intelligence Scale for Children, Fourth Edition (WISC-IV). Results revealed that the overall pattern of performance in change-detection tasks for children was similar to adults' performance in the literature; with increased array size, response accuracy systematically decreased. Significant age-related improvements on visuospatial and verbal WM capacities were found in school-age children. Although WISC-IV WM measures were significantly correlated with each other, only the Arithmetic subtest was significantly correlated with visuospatial WM as measured by the change-detection task, and none were significantly correlated with verbal WM as measured by the change-detection task. These results suggest the clinical WISC-IV WM subtests may not elicit the same construct as experimental change-detection WM measures, with the possible exception of the Arithmetic subtest.
authors.affiliation: a Department of Psychology , Eastern Michigan University , Ypsilanti , MI , USA.
authors.forename: Alison
authors.initials: A
authors.lastname: Colbert
authors.affiliation: a Department of Psychology , Eastern Michigan University , Ypsilanti , MI , USA.
authors.forename: Jin
authors.initials: J
authors.lastname: Bo
mesh_terms: D002648:Child; D002657:Child Development / Q000502:physiology*; D006801:Humans; D008297:Male; D008570:Memory, Short-Term / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology*; D017603:Signal Detection, Psychological / Q000502:physiology*; D014888:Wechsler Scales
keywords: Assessment; Development; Working memory