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HSR Citation Abstract

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Psychometric properties of a brief measure of posttraumatic stress disorder-related impairment: The Brief Inventory of Psychosocial Functioning.

Kleiman SE, Bovin MJ, Black SK, Rodriguez P, Brown LG, Brown ME, Lunney CA, Weathers FW, Schnurr PP, Spira J, Keane TM, Marx BP. Psychometric properties of a brief measure of posttraumatic stress disorder-related impairment: The Brief Inventory of Psychosocial Functioning. Psychological Services. 2020 May 1; 17(2):187-194.

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Abstract:

This study validated the Brief Inventory of Psychosocial Functioning (B-IPF), an abridged version of the 80-item Inventory of Psychosocial Functioning (IPF; Bovin et al., 2018). The B-IPF-a 7-item self-report questionnaire that assesses posttraumatic stress disorder (PTSD)-related psychosocial functional impairment-was developed for use in settings in which the full IPF would be too time intensive to administer. In this study, we examined the psychometric properties of the B-IPF among a sample of 362 veterans recruited from 2 Veterans Affairs hospitals. The B-IPF demonstrated high internal consistency (Cronbach's alpha = .84) and adequate test-retest reliability (r = .65, p < .001). The B-IPF was strongly correlated with the IPF (r = .71, p < .01) and had higher correlations with measures of mental health impairment and quality of life (all rs > ?.50?; all ps < .001) than with a measure of physical health impairment (i.e., the Physical Component Summary; r = -.34; p < .001), which demonstrated strong construct validity. In addition, the B-IPF displayed strong criterion-related validity, with higher correlations with a PTSD symptom measure, (r = .63, p < .05), and measures of other internalizing disorders (all rs > .44; all ps < .05) and a lower correlation with a measure of an externalizing disorder (r = .14; p < .05). These results indicate that the B-IPF is a reliable and valid instrument for assessing PTSD-related impairment. The strong psychometric properties of the instrument, in addition to its length, make it ideal for settings in which time is a factor. (PsycInfo Database Record (c) 2020 APA, all rights reserved).




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