HEADACHE DISABILITY INVENTORY (HDI) - SHORT-TERM TEST-RETEST RELIABILITY AND SPOUSE PERCEPTIONS

We have reported previously that the 25-item Headache Disability Inven tory has good internal consistency reliability, robust long-term (2 mo nth) test-retest stability, and good construct validity. We conducted further investigations to evaluate the short-term (1 week) test-retest reliability and spouse perceptions of patients' self-perceived headac he disability. The short-term test-retest reliability of the Headache Disability Inventory was excellent. Additionally, the spouse and patie nts' perceptions of the patient's headache disability generally were c ongruent, although we observed instances where the differences were ma rked.