Subjects were 156 individuals referred, for psychological and neuropsychological evaluation. The Wechsler Memory Scale (WMS) including the 12h delayed condition of Russell's revision and Warrington's Recognition Memory Test (RMT) were administered as part of each evaluation. Using scores from the RMT subtests: (1) Memory for Words and (2) Memory for Faces, and scores from the WMS subtests: (3) Logical Memory, (4) Digit Span, (5) Visual Reproduction, and (6) Associate Learning flow associate pairs only), a principal components factor analysis was carried out with an orthogonal varimax rotation yielding four factors: (1) verbal learning and memory, (2) Figurai memory, (3) Recognition memory, and (4) Attention-Concentration. Results are discussed with respect to the independent, but complementary information provided by the WMS and RMT for measurement of memory functions.