Validating a New Memory Measure: An Experimental Memory Task

1. Validating a New Memory Measure: An Experimental Memory Task K. L. Drayer, M. L. Rohling, D. M. Ploetz, M. N. Womble, & B. D. Hill • Introduction • Computerized batteries such as ImPACT and COGNISTAT , use recognition memory, and are required to simplify tasks due to limitation of the equipment. The California Verbal Learning Test – Second Edition (CVLT –II) is considered a gold standard when testing for memory and learning which is why it was used as a comparison in our task. • Purpose • The purpose of this study was to develop a memory task that includes components of both verbal and visual memory, that was simple enough in response style, but is more associated with what is traditionally considered “memory”.  This experimental memory task would provide clinicians and other professionals, such as those who produce computerized neuropsychological batteries, with the capability to administer a comprehensive memory test within specific time constraints. • Method • Participants • 82 undergraduates from a southeastern university volunteered to participate in this study. • Participants were between the ages of 18-44 (M 22.24, SD 5.57), with a mean education of 13.02 (SD 1.52). • All participants were in the genuine condition. • Participants completed the California Verbal Learning Test – Second Edition (CVLT-II) and a verbal and visual memory test in its pilot phase; the Experimental Memory Task (EMT). University of South Alabama • Procedure • Participants were given the CVLT-II and completed all trials, as well as the free recall, cued recalls and delayed recalls. • Participants were then given the three immediate trials of the EMT, as well as a delayed trial and a recognition trial. Results • Correlations matrices were examined for the total combined scores for trials 1 thru 5 of the CVLT-II, trials 1 thru 3 of the EMT, as well as Recognition Hits for both the CVLT-II and the EMT. • A moderate correlation (r = .512, p <.0001) was found between the EMT and the CVLT-II total combined scores. • Regression analyses were also completed for the total combined scores for trials 1 thru 5 of the CVLT-II, trials 1 thru 3 of the EMT, as well as a comparison of the CVLT-II and the verbal and visual components of the CNS Vital Signs (indicated by the scatter plots on the left). • Discussion • Results suggest that although the EMT is still in development, it is comparative to and measuring the same construct as the CVLT-II. The average time for the EMT is 4.5 minutes. While the average time for 7 subtests is 28.5 minutes, the EMT combines two subtests, and still cuts the time in half.