AI Article Synopsis
- The Groningen Effort Test (GET) is a new type of performance validity test (PVT) that focuses on non-memory skills, developed to improve assessment accuracy in neuropsychological evaluations.
- The study aimed to validate the GET against two established memory-based PVTs in patients suspected of having chronic solvent-induced encephalopathy (CSE) and to assess its diagnostic accuracy.
- Results showed that the GET identified a much higher rate of invalid performance (51.7%) than the traditional tests (20.0%), but it also failed to meet the preferred specificity threshold of 90%, indicating it may not be reliable in clinical settings for this condition.
Article Abstract
Introduction: The use of performance validity tests (PVTs) in a neuropsychological assessment to determine indications of invalid performance has been a common practice for over a decade. Most PVTs are memory-based; therefore, the Groningen Effort Test (GET), a non-memory-based PVT, has been developed.
Objectives: This study aimed to validate the GET in patients with suspected chronic solvent-induced encephalopathy (CSE) using the criterion standard of 2PVTs. A second goal was to determine diagnostic accuracy for GET.
Method: Sixty patients with suspected CSE referred for NPA were included. The GET was compared to the criterion standard of 2PVTs based on the Test of Memory Malingering and the Amsterdam Short Term Memory Test.
Results: The frequency of invalid performance using the GET was significantly higher compared to the criterion of 2PVTs (51.7% vs. 20.0% respectively; p < 0.001). For the GET index, the sensitivity was 75% and the specificity was 54%, with a Youden's Index of 27.
Conclusion: The GET showed significantly more invalid performance compared to the 2PVTs criterion suggesting a high number of false positives. The general accepted minimum norm of specificity for PVTs of >90% was not met. Therefore, the GET is of limited use in clinical practice with suspected CSE patients.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11504684 | PMC |
| http://dx.doi.org/10.1093/arclin/acae025 | DOI Listing |
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