PURPOSE To examine prediction power of personality traits, expressed emotion, and coping strategies on caregivers' burden. DESIGNS AND METHODS Cross-sectional descriptive correlational design was used to collect data from 196 caregivers using the Self-Administered Questionnaire from Jordanian caregivers of patients with serious mental illness. FINDINGS Jordanian caregivers had a moderate-to-severe burden level (M = 47.1, SD = 11.5).