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A comparison of four PTSD measures' convergent validities in Vietnam veterans
Author(s) -
Watson Charles G.,
Plemel Duane,
DeMotts John,
Howard Mary T.,
Tuorila James,
Moog Ronald,
Thomas Dolores,
Anderson Douglas
Publication year - 1994
Publication title -
journal of traumatic stress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.259
H-Index - 134
eISSN - 1573-6598
pISSN - 0894-9867
DOI - 10.1002/jts.2490070108
Subject(s) - minnesota multiphasic personality inventory , convergent validity , psychology , clinical psychology , psychometrics , scale (ratio) , psychiatry , posttraumatic stress , test validity , personality , social psychology , physics , quantum mechanics , internal consistency
We compared the convergent validities of four commonly used post‐traumatic stress disorder (PTSD) measures in 80 help‐seeking Vietnam veterans by contrasting their intercorrelations. When scored as continuous severity or frequency measures, the Mississippi Scale for Combat‐related PTSD's and the Post‐Traumatic Stress Disorder Interview's (PTSD‐I's) concordances with other measures were similar to one anothers' and generally larger than those of either the Diagnostic Interview Schedule (DIS) PTSD module or the MMPI PTSD scale. However, when used only to identify stress disorder's presence or absence, the four techniques' concordances were nearly identical. This suggested that the four measures have similar convergent validities when used simply to identify PTSD, but that the PTSD‐I and Mississippi scale offer better convergent validity than the MMPI or DIS instruments when used as severity measures.