Validity of short forms of the category test

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dc.contributor.advisor Lenzer, Irmingard
dc.creator Sterns, Gwenyth L.
dc.date.accessioned 2011-05-09T12:32:48Z
dc.date.available 2011-05-09T12:32:48Z
dc.date.issued 1987
dc.identifier.other RC386.6 H34 S73 1987
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/22823
dc.description 49 leaves ; 28 cm.
dc.description Bibliography: leaves 422-444.
dc.description.abstract The criterion - related validity of two short forms of the Category Test was examined. As was the case in earlier studies, both short forms yielded high validity coefficients and high agreement with respct to Halstead's cut - off score for impairment. The 120 - item form was the stronger predictor, accounting for 90.8% of the variance in the original Category Test, which the 108 - item form accounted for 79.5%. However, both short forms were seriously limited with respect to how closely, the estimated scores approximated the actual scores; even the best short form prediction equations produced estimated scores within a 10 - point range of the actual scores only 44% and 42% of the time. Since the main clinical purpose for using a short form would be to obtain an estimate of the actual score, neither short form can be recommended for clinical use. This study illustrates the need to consider the specific purpose for which a predictor is to be used when investigating the crierion - related validity of a measure.
dc.language.iso en
dc.publisher Halifax, N.S. : Saint Mary's University
dc.subject.lcc RC386.6.H34
dc.subject.lcsh Neuropsychological tests
dc.subject.lcsh Categorization (Psychology)
dc.subject.lcsh Halstead-Reitan Neuropsychological Test Battery
dc.subject.lcsh Regression analysis
dc.title Validity of short forms of the category test
dc.type Text
thesis.degree.name Master of Science in Applied Psychology
thesis.degree.level Masters
thesis.degree.discipline Psychology
thesis.degree.grantor Saint Mary's University (Halifax, N.S.)


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