Autor: |
Ashendorf L; Mental Health Service Line, VA Central Western Massachusetts, Worcester, MA, USA.; Department of Psychiatry, University of Massachusetts Medical School, Worcester, MA, USA., Withrow S; Behavioral Health Service Line, VA Pittsburgh Healthcare System, Pittsburgh, PA, USA., Ward SH; Mental Health Service Line, VA Central Western Massachusetts, Worcester, MA, USA.; Department of Psychiatry, University of Massachusetts Medical School, Worcester, MA, USA., Sullivan SK; Psychology Service, VA Bedford Healthcare System, Bedford, MA, USA., Sugarman MA; Department of Neurology, Medical University of South Carolina, Charleston, SC, USA. |
Abstrakt: |
The present study investigated abbreviation methods for the Test of Memory Malingering (TOMM) in relation to traditional manual-based test cutoffs and independently derived more stringent cutoffs suggested by recent research (≤48 on Trial 2 or 3). Consecutively referred outpatient U.S. military veterans ( n = 260) were seen for neuropsychological evaluation for mild traumatic brain injury or possible attention-deficit/hyperactivity disorder. Performance on TOMM Trial 1 was evaluated, including the total score and errors on the first 10 items (TOMMe10), to determine correspondence and redundancy with Trials 2 and 3. Using the traditional cutoff, valid performance on Trials 2 and 3 was predicted by zero errors on TOMMe10 and by Trial 1 scores greater than 41. Invalid performance was predicted by commission of more than three errors on TOMMe10 and by Trial 1 scores less than 34. For revised TOMM cutoffs, a Trial 1 score above 46 was predictive of a valid score, and a TOMMe10 score of three or more errors or a Trial 1 score below 36 was associated with invalid TOMM performance. Conditional abbreviation of the TOMM is feasible in a vast majority of cases without sacrificing information regarding performance validity. Decision trees are provided to facilitate administration of the three trials. |