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Table 2 Internal consistency of the mental health status, quality of life, and Zarit burden indices

From: Economic cost and quality of life of family caregivers of schizophrenic patients attending psychiatric hospitals in Ghana

Domain Number of items Cronbach’s alpha
Mental health status
 Depression 7 0.67
 Anxiety 7 0.80
 Stress 7 0.83
Quality of life
 Physical 7 0.82
 Psychological 6 0.77
 Social 3 0.56
 Environmental 8 0.81
Zarit burden index 12 0.83