Psychometric properties of the Chinese version of the Family Questionnaire among the caregivers of people with schizophrenia

Introduction Expressed emotion refers to relatives' attitudes and emotional behaviors toward mentally ill family members. It is a robust predictor of patients' illness outcomes caregivers' wellbeing in wide range mental disorders. However, expressed has not been fully explored the Chinese context. One reason lack reliable cost-effective measurements. A reliable, valid, user-friendly instrument needed support research clinical practice based on China. This study aimed translate, adapt, examine psychometric properties (factorial structure, measurement invariance, internal consistency reliability, concurrent validity) version Family Questionnaire. Methods total 248 caregivers participated study. translation back-translation procedure was applied translate Questionnaire into Chinese. We compared two models factor structure questionnaire by performing confirmatory analysis. also conducted invariance analysis test whether tool invariant across male female groups. Reliability evaluated with Cronbach's α. The validity examined testing predictivity relevant path used STROBE checklist report. Results item-total correlation coefficients scale ranged from 0.375 0.752. indicated that displays original two-factor (emotional overinvolvement criticism; X 2 = 335.50, df 169, / 1.985, RMSEA 0.063, SRMR 0.058, CFI 0.913, TLI 0.902). In addition, subscales showed excellent consistency, alpha 0.92 for both criticism. supported good care burden, function, quality life. All were significant, absolute values 0.23 0.72. Conclusion valid