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- Title
Test of Premorbid Functioning: You're Doing It Wrong, but Does It Matter?
- Authors
Shura, Robert D; Ord, Anna S; Martindale, Sarah L; Miskey, Holly M; Taber, Katherine H
- Abstract
Objective Clarify procedures to correctly score Test of Premorbid Functioning (TOPF) and assess the accuracy of TOPF scores in the estimation of premorbid intellectual functioning. Method In this cross-sectional study, post-9/11 veterans (N = 233, 84.12% male) completed the TOPF, the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV), and performance validity measures. Results All TOPF scores were significantly correlated with WAIS-IV FSIQ scores (range r = 0.56–.73). The degree of discrepancy between TOPF scores and FSIQ varied with 10%–17% of TOPF scores deviating from FSIQ scores by one SD or more. Conclusions Proper TOPF scoring procedures are presented. The TOPF Actual and Predicted scores were related to FSIQ. However, a higher percentage of Actual and Predicted scores were discrepant from FSIQ compared with the other three TOPF estimates, arguing against their use as independent premorbid estimates. Use of the TOPF as was designed is recommended.
- Subjects
TEST validity; TEST scoring; ADULTS; VETERANS; CROSS-sectional method
- Publication
Archives of Clinical Neuropsychology, 2022, Vol 37, Issue 5, p1035
- ISSN
0887-6177
- Publication type
Article
- DOI
10.1093/arclin/acaa025