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MMPI overreporting by Vietnam combat veterans.
J Clin Psychol. 1987 Jan; 43(1):79-83.JC

Abstract

The MMPI-PTSD scale is the only psychometric measure that has been cross-validated on Vietnam veterans for the determination of PTSD. Despite this, there may be problems with this scale related to symptom exaggeration. Three groups of Vietnam inpatients (N = 75) were defined carefully by both clinical and actuarial methods--PTSD combat, Non-PTSD combat, and Non-combat. This study applied symptom exaggeration methods based on the MMPI obvious/subtle items and on the F scale to these groups. Results show that all the items of this scale are either obvious or neutral, that a carefully distinguished PTSD group differentially responds to these obvious and neutral items relative to other inpatient Vietnam groups, and that the F scale is exaggerated by the PTSD group. In addition, a separate analysis on an independent sample of 50 combat and 50 non-combat Vietnam veterans showed that the combat group endorsed the obvious items on selected scales by 20 T score points at higher rates than other groups. Caution in the use of the MMPI-PTSD scale is discussed.

Authors

Hyer L
No affiliation info available
Fallon JH
No affiliation info available
Harrison WR
No affiliation info available
Boudewyns PA
No affiliation info available

MeSH

HumansMMPIStress Disorders, Post-TraumaticTruth DisclosureVeteransVietnam

Pub Type(s)

Journal Article

Language

eng

PubMed ID

3558843

Citation

Hyer, L, et al. "MMPI Overreporting By Vietnam Combat Veterans." Journal of Clinical Psychology, vol. 43, no. 1, 1987, pp. 79-83.
Hyer L, Fallon JH, Harrison WR, et al. MMPI overreporting by Vietnam combat veterans. J Clin Psychol. 1987;43(1):79-83.
Hyer, L., Fallon, J. H., Harrison, W. R., & Boudewyns, P. A. (1987). MMPI overreporting by Vietnam combat veterans. Journal of Clinical Psychology, 43(1), 79-83.
Hyer L, et al. MMPI Overreporting By Vietnam Combat Veterans. J Clin Psychol. 1987;43(1):79-83. PubMed PMID: 3558843.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - MMPI overreporting by Vietnam combat veterans. AU - Hyer,L, AU - Fallon,J H,Jr AU - Harrison,W R, AU - Boudewyns,P A, PY - 1987/1/1/pubmed PY - 2001/3/28/medline PY - 1987/1/1/entrez SP - 79 EP - 83 JF - Journal of clinical psychology JO - J Clin Psychol VL - 43 IS - 1 N2 - The MMPI-PTSD scale is the only psychometric measure that has been cross-validated on Vietnam veterans for the determination of PTSD. Despite this, there may be problems with this scale related to symptom exaggeration. Three groups of Vietnam inpatients (N = 75) were defined carefully by both clinical and actuarial methods--PTSD combat, Non-PTSD combat, and Non-combat. This study applied symptom exaggeration methods based on the MMPI obvious/subtle items and on the F scale to these groups. Results show that all the items of this scale are either obvious or neutral, that a carefully distinguished PTSD group differentially responds to these obvious and neutral items relative to other inpatient Vietnam groups, and that the F scale is exaggerated by the PTSD group. In addition, a separate analysis on an independent sample of 50 combat and 50 non-combat Vietnam veterans showed that the combat group endorsed the obvious items on selected scales by 20 T score points at higher rates than other groups. Caution in the use of the MMPI-PTSD scale is discussed. SN - 0021-9762 UR - https://www.unboundmedicine.com/medline/citation/3558843/MMPI_overreporting_by_Vietnam_combat_veterans_ DB - PRIME DP - Unbound Medicine ER -