Visual Acuity does not Moderate Effect Sizes of Higher-Level Cognitive Tasks
2016
Background/Study Context: Declining visual capacities in older adults have been posited as a driving force behind adult age differences in higher-order cognitive functions (e.g., the “common cause” hypothesis of Lindenberger & Baltes, 1994, Psychology and Aging, 9, 339–355). McGowan, Patterson, and Jordan (2013, Experimental Aging Research, 39, 70–79) also found that a surprisingly large number of published cognitive aging studies failed to include adequate measures of visual acuity. However, a recent meta-analysis of three studies (La Fleur and Salthouse, 2014, Psychonomic Bulletin & Review, 21, 1202–1208) failed to find evidence that visual acuity moderated or mediated age differences in higher-level cognitive processes. In order to provide a more extensive test of whether visual acuity moderates age differences in higher-level cognitive processes, we conducted a more extensive meta-analysis of topic.Methods: Using results from 456 studies, we calculated effect sizes for the main effect of age across fo...
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