Objective. To re-evaluate the construct validity of the Disease Repercussio
ns Profile (DRP), a measure of handicap in arthritis populations,
Methods. We used the multitrait-multimethod approach to determine convergen
t and discriminant validity in a postal survey of randomly selected patient
s with rheumatoid arthritis who had attended the Wellington Regional Rheuma
tology Unit since 1988. Respondents (n = 142) completed the following self-
report instruments: Disease Repercussions Profile, EuroQol EQ-5D, Health As
sessment Questionnaire, London Handicap Scale and WHOQOL-BREV.
Results and conclusions. The pattern of correlation supported the construct
validity of the dichotomous response question (DRP domain affected or not)
for the activity and relationships domain, provided ambiguous support for
the appearance and emotion domain and no support for the social and financi
al domains. There was no support for construct validity of any of the domai
ns on the importance rating part of the DRP. We suggest that the DRP be int
erpreted cautiously in aggregated group data.