An enhanced delayed recognition measure for the Logical Memory subtest of the Wechsler Memory Scale - IV

We provide a supplemental measure based on the Logical Memory (LM) subtest of the Wechsler Memory Scale - IV (Wechsler, 2008) to assist in distinguishing deficient memory storage from compromised retrieval operations. A 20-item five-option multiple choice delayed recognition test for the LM stories is described, followed by descriptive data based on a normative sample of 273 neuropsychologically normal outpatient referrals to a neuropsychology clinic. The analysis indicated that about 43% to 48% of the neuropsychology referrals exhibited retrieval difficulties and were able to store more information in long-term memory than they were able to retrieve on the delayed free recall trial. The 20-item measure, freely available to qualified clinicians, provides useful information regarding a person's ability to store and access newly acquired information.