Related Experiment Video
Updated: Mar 19, 2026
06:23
The 4 Mountains Test: A Short Test of Spatial Memory with High Sensitivity for the Diagnosis of Pre-dementia Alzheimer's Disease
Published on: October 13, 2016
34.1K
Factor Analysis of the MSVT, NV-MSVT, and RBANS Memory Subtests.
Patrick Armistead-Jehle1, Christopher L Hansen2
1Concussion Clinic, Munson Army Health Center, Fort Leavenworth, KS, USA patrick.j.armistead-jehle.civ@mail.mil.
Summary
Performance validity tests like the Medical Symptom Validity Test (MSVT) and Non-Verbal MSVT measure effort, not memory. Factor analysis confirmed these tests are distinct from standard memory assessments.
Area of Science:
- Neuropsychology
- Clinical Psychology
Background:
- Performance validity tests (PVTs) are crucial for identifying non-credible symptom reporting in clinical assessments.
- Distinguishing between genuine memory impairment and effort-related factors is essential for accurate diagnosis.
Purpose of the Study:
- To investigate the construct validity of the Medical Symptom Validity Test (MSVT) and Non-Verbal MSVT.
- To determine if these tests measure effort or memory capacity using a factor analytic approach.
Main Methods:
- A factor analytic strategy was employed, mirroring Heyanka et al. (2015).
- Data from 346 service members with a history of concussion were analyzed.
- Subtests from the MSVT, Non-Verbal MSVT, and Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) were included.
Main Results:
- A two-factor solution emerged from the analysis.
- MSVT and Non-Verbal MSVT effort and paired associate subtests loaded onto one factor.
- RBANS memory subtests loaded onto a separate, distinct factor.
Conclusions:
- The findings support the distinction between effort measures and memory measures.
- The effort subtests of the MSVT and Non-Verbal MSVT assess a construct separate from memory functioning.
- This validates the use of MSVT and NV-MSVT as measures of performance validity, not memory impairment.
