Students with and without mental retardation from three age groups (ages 6-8, 10-12, and 15-17), were compared on implicit and explicit memory tasks. Students without mental retardation performed better on the explicit memory task, but there was no difference between groups on the implicit memory task. (Author/CR)

Thirty children with mild mental retardation were compared with 30 children of the same age and 26 children matched for verbal age without mental retardation on a forward digit span task. The highly significant group difference was reduced to nonsignificance when a measure of central executive functioning was covaried out. (Author/CR)

Differences in storage and rehearsal components of the phonological loop and visuo-spatial sketchpad were investigated in individuals with (n=19) and without (n=21) intellectual disability matched on memory span. Those with intellectual disability had specific difficulty in the rehearsal component of the phonological loop. Groups did not differ in…