Cross-validation of a manual form of the Letter Memory Test using a known-groups methodology.
A manual form of the Letter Memory Test (LMT: Orey, Cragar, & Berry, 2000) was compared in neuropsychological evaluees classified as honest (HON: n = 39) or probable cognitive feigners (PCF: n = 10) using results from two well-validated motivational tests. With the exception of lower educational level and higher rate of compensation seeking in the PCF, the groups were equivalent on most important demographic and injury severity parameters. PCF participants scored significantly lower on most neuropsychological tests (median Cohen's d = 1.2), as well as on the manual LMT (Cohen's d = 4.2). Operating characteristics of the manual LMT in the present sample were comparable to those reported in a similar study using the computerized version of the LMT in neuropsychiatric patients (Vagnini et al., 2006).
Schipper
Lindsey J
LJ
Department of Psychology, University of Kentucky, Lexington, KY 45114-0044, USA.
Berry
David T R
DT
Coen
Eileen
E
Clark
Jessica A
JA
D000328:Adult; D016009:Chi-Square Distribution; D005260:Female; D006801:Humans; D007361:Intelligence Tests; D008297:Male; D008306:Malingering / Q000175:diagnosis* / Q000523:psychology; D008370:Manuals as Topic; D008569:Memory Disorders / Q000175:diagnosis* / Q000209:etiology; D008609:Mental Status Schedule; D008875:Middle Aged; D009483:Neuropsychological Tests; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity