Objective: Investigation of correlational relationships between factorial components of the Benton Visual Retention Test (BVRT) and the nine-digit Serial Digit Learning Test (SDL-9) to each other and to indices of auditory attention span and working memory. Method: Archival data from a diagnostically diverse sample of 129 neuropsychiatric patients who had been administered the BVRT, SDL-9, Digit Span-Forward (DSF) and Letter Number Sequencing (LNS) subtests of the WAIS-III were submitted to a principal component analysis. All cases with these data were included; there were no exclusion criteria. Factor scales from previous research showed two BVRT components (items 1-4 versus items 5-10) and three SDL-9 components that represented early, middle, and late trial factorial subgroups. Results. A three factor solution was obtained that showed systematic relationships of SDL9 and BVRT components to each other and to both DSP-F and LNS. The SDL-9 early and middle trial factors loaded on DSF, the attention...

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