Do Laboratory Tests Predict Everyday Memory? A Neuropsychological Study.

The relationship between memory performance in everyday life and performance on laboratory tests was investigated in a group of subjects with normal memory and two groups of severely head-injured subjects differing in time since injury (several months vs several years). Everyday memory was assessed using questionnaires and checklists completed by each subject and independently by a relative who was in daily contact with him. Overall, a high degree of consistency was found among these measures, though the lower consistency of the subjects' questionnaire illustrated the problems of validity with self-assessment. The relatives' questionnaire correlated with test performance for normal subjects and for the long-term head-injured group but not for the recently head-injured subjects who had not yet reached a stable state. The highest correlations were with prose recall and paired-associate learning. The absence of correlations with visual memory tests may have been due to low salience of visual errors in everyday life.

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