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Objective: To analyze the validity based on the internal structure and reliability of the Brazilian version of the Caregiver Reaction Assessment (CRA) applied to informal caregivers of dependent elderly. Method: A methodological study with 120 informal caregivers of the elderly. Validity based on the internal structure evaluated by exploratory factorial analysis, with extraction of main factorial axes, varimax orthogonal rotation and retention of factors by parallel analysis. Reliabilitydoi:10.1590/0034-7167-2017-0153 pmid:29791639 fatcat:tbhd4drkczc3bcon4ihjqcm3c4