Factor structure and initial validation of a brief measure of perceived emotional and physical distress tolerance in post-9/11 US Veterans

ABSTRACT

Distress tolerance (i.e., perceived or actual capacity to tolerate aversive internal states) has received considerable research attention as a transdiagnostic risk-factor underlying the development and maintenance of psychopathology. Lower levels of emotional distress tolerance have been linked to psychopathology (e.g. Posttraumatic Stress Disorder) within Military populations; however, the association of physical distress tolerance to psychopathology in this population has been under-researched. This research gap may be due in part to a paucity of comprehensive, temporally stable and brief measures of distress tolerance that have been validated within Military populations, which may hinder further examination and refinement of the construct. Addressing this problem, the current study evaluates the psychometric properties of a novel and brief measure of emotional and physical distress tolerance in a sample of United States post-9/11 Veterans. Participants were 307 Veterans (M_age = 38.9, 67.7% male) who completed the 10-item Distress Tolerance Inventory at baseline and annual follow-up. Exploratory structural equation modeling was used to examine the optimal latent factor structure and longitudinal invariance of the DTI measurement model, along with correlational analyses to examine the convergent properties of the DTI subscales. The DTI reflected a longitudinally invariant two-factor structure (emotional and physical distress tolerance), with excellent internal consistency and preliminary evidence of convergent validity. Thus, the DTI represents a brief, reliable and temporally stable measure of physical and emotional distress tolerance.

KEYWORDS:

• Distress tolerance
• longitudinal metric invariance
• exploratory structural equation modeling
• Military Veterans

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by VA Merit Awards to Dr. Morissette (I01RX000304-01) and to Drs. Meyer and Morissette (I01RX000304-04) from the Rehabilitation Research and Development Service of the Department of Veterans Affairs (VA) Office of Research and Development (ORD); the VA VISN 17 Center of Excellence for Research on Returning War Veterans; the Central Texas Veterans Health Care System.