Abstract
Although the Wechsler Memory Scale—Revised (WMS-R; Wechsler, 1987) is one of the more frequently used measures of memory and attention, its Attention/Concentration Index (ACI) has been minimally researched. If the ACI is to be used as a measure of “attention,” the need exists to determine if it is related to other measures theoretically argued to be sensitive to attention deficits. The present study evaluated the relationship between the WMS-R ACI and other putative measures of attention by comparing individuals labeled as Attention Impaired [ACI at least 15 points < General Memory Index (GMI)] versus those labeled as Memory Impaired (GMI at least 15 points < ACI). Contrary to expectations, the Attention Impaired group scored equal to the Memory Impaired group on all measures theorized to be sensitive to attention deficits (Trails A and B time, Trails B errors, Rey AVLT interference list), except for statistically weaker performance on Trails A errors. In contrast but as expected, the Memory Impaired group scored statistically worse on all memory tests (Rey AVLT, all TPT variables). The groups also did not differ on tests argued not to be differentially affected by either attention or memory (WAIS-R FIQ, Category Test). It is concluded that the WMS-R Attention Index is not related to deficits on other measures sensitive to attention, further emphasizing the need to identify more clearly specific attention constructs.
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Johnstone, B., Erdal, K. & Stadler, M.A. The relationship between the Wechsler Memory Scale—Revised (WMS-R) Attention index and putative measures of Attention. J Clin Psychol Med Settings 2, 195–204 (1995). https://doi.org/10.1007/BF01988643
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DOI: https://doi.org/10.1007/BF01988643