Validity study of the perceptual memory task
Bryan, Ella Lee Brinkley
MetadataShow full item record
Individuals with disability are at risk to experience functional limitations that impact attention, concentration and memory capacities, as well as the ability to process information. A recognized component of vocational evaluation and rehabilitation assessment is the identification of learning preferences or learning style. The Perceptual Memory Task (PMT) is an acknowledged learning style assessment and is used frequently along with the Kaufman Brief Intelligence Test – 2 (KBIT-2) in vocational evaluation of individuals with disability. The PMT has not been validated since 1984 when it was compared to the Wechsler Adult Intelligence Scale (1955) as part of the instrument’s original norm study. Multiple correlation research design using ANOVAs and simple linear regression determined the relationship between the dependent variables involving the subscales of the PMT and the KBIT-2 and the independent variables of age, gender, level of education and type of disability. A positive Pearson correlation between the two instruments was found at the .05 level of significance and similar patterns of relationships were noted as found in the 1984 correlation study. Results indicated that recent memory is particularly vulnerable to the cognitive implications of disability. The variables of gender and level of education have been found in previous studies to have an impact on test performance. In this study, these variables were noted to have an impact on KBIT-2 subscale scores, but not the subscale scores of the PMT. Extreme variance in distribution was noted on the PMT subscales and one of the KBIT-2 subscales and score transformation was completed using the Box-Cox transformation to explore relationships between the dependent and independent variables. INDEX WORDS: Perceptual Memory Task; Kaufman Brief Intelligence Test – 2; information processing; intelligence; memory and attention.