When Time is of the Essence: Preliminary Findings for a Quick Administration of the Dot Counting Test
| Autor: | Jacob I Phillips, Janice C. Marceaux, Troy A. Webber, Lindsay D R Kraemer, Jason R. Soble, K. Chase Bailey |
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| Rok vydání: | 2019 |
| Předmět: |
050103 clinical psychology
Malingering Test validity Neuropsychological Tests Logistic regression Memory and Learning Tests 03 medical and health sciences 0302 clinical medicine Test of Memory Malingering Memory Statistics Discrete cosine transform medicine Humans 0501 psychology and cognitive sciences Sensitivity (control systems) Mathematics Receiver operating characteristic 05 social sciences Reproducibility of Results General Medicine medicine.disease Test (assessment) Psychiatry and Mental health Clinical Psychology Neuropsychology and Physiological Psychology Cross-Sectional Studies 030217 neurology & neurosurgery |
| Zdroj: | Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists. 36(3) |
| ISSN: | 1873-5843 |
| Popis: | Objective Performance validity research has emphasized the need for briefer measures and, more recently, abbreviated versions of established free-standing tests to minimize neuropsychological evaluation costs/time burden. This study examined the accuracy of multiple abbreviated versions of the Dot Counting Test (“quick” DCT) for detecting invalid performance in isolation and in combination with the Test of Memory Malingering Trial 1 (TOMMT1). Method Data from a mixed clinical sample of 107 veterans (80 valid/27 invalid per independent validity measures and structured criteria) were included in this cross-sectional study; 47% of valid participants were cognitively impaired. Sensitivities/specificities of various 6- and 4-card DCT combinations were calculated and compared to the full, 12-card DCT. Combined models with the most accurate 6- and 4-card combinations and TOMMT1 were then examined. Results Receiver operator characteristic curve analyses were significant for all 6- and 4-card DCT combinations with areas under the curve of .868–.897. The best 6-card combination (cards, 1-3-5-8-11-12) had 56% sensitivity/90% specificity (E-score cut-off, ≥14.5), and the best 4-card combination (cards, 3-4-8-11) had 63% sensitivity/94% specificity (cut-off, ≥16.75). The full DCT had 70% sensitivity/90% specificity (cut-off, ≥16.00). Logistic regression revealed 95% classification accuracy when 6-card or 4-card “quick” combinations were combined with TOMMT1, with the DCT combinations and TOMMT1 both emerging as significant predictors. Conclusions Abbreviated DCT versions utilizing 6- and 4-card combinations yielded comparable sensitivity/specificity as the full DCT. When these “quick” DCT combinations were further combined with an abbreviated memory-based performance validity test (i.e., TOMMT1), overall classification accuracy for identifying invalid performance was 95%. |
| Databáze: | OpenAIRE |
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