LAUSR

OBJECTIVE To validate a questionnaire to assess the impact of dementia on one of the household members. METHODS Methodological study. The instrument was designed based on literature review, expert opinion, and researchers' experience and then applied to a non-probability convenience sample consisting of 262 family members who live daily with a person with dementia. The construct validity was studied by exploratory factor analysis, principal components method, with varimax rotation of the items. RESULTS An instrument with 30 items was obtained, distributed in four dimensions: "Emotional dimension," "Economic dimension," "Family relations dimension," and "Support-seeking dimension." Factor analysis revealed a total explained variance of 54.96% and a total Cronbach's alpha of .899. CONCLUSIONS The instrument presents high internal consistency, grouped into four dimensions, all closely related to the family's adaptation to the onset of dementia in one of its members.