Development and initial valdiation of a new procedure for evaluating adequacy of effort given during neuropsychological testing: The letter memory test

The authors report on results from a new procedure for evaluating adequacy of effort given during neuropsychological testing. The letter memory test (LMT) is a computer-administered, 45-item, forced-choice recognition task that uses consonant letters as stimuli and manipulates face difficulty level along 2 dimensions; number of letters to be remembered and number of choices amongst which the target stimulus must be identified.