Using the binomial distribution to assess effort: Forced-choice testing in neuropsychological settings
Titel:
Using the binomial distribution to assess effort: Forced-choice testing in neuropsychological settings
Auteur:
Faulder Colby
Verschenen in:
NeuroRehabilitation
Paginering:
Jaargang 16 (2002) nr. 4 pagina's 253-265
Jaar:
2002-03-01
Inhoud:
The binomial distribution is often, but prematurely, rejected as a tool for assessing effort. This study extended previous research using published clinical and computer-generated pseudo subject data for the {\it Test of Memory Malingering (TOMM)}. The efficiencies of eight cut points based upon inverse binomial distribution functions were compared with the cut point recommended in the test manual for making correct classifications, and a new statistic, the total number of errors, was also compared with the test manual cut point. Repeated measures, multivariate, and univariate ANOVAs, Bonferroni-corrected post-hoc t-tests, and normal curve density functions were employed to assess the homogeneity of groups within experimental conditions. Based upon these analyses, changes were recommended in the decision rules for the {\it TOMM}, and strategies for improving the norms for the {\it TOMM} and for neuropsychological assessment instruments, generally, were discussed.
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