Development and validation of a professional autonomy scale for Japanese midwives.

Japanese midwives are required to autonomously perform midwifery diagnosis and maternity care. However, education to promote the professional autonomy of midwives is inadequate, and previous studies have not been able to identify a measure for it. This study aimed to develop a professional autonomy scale for midwives, to be used for the education and career advancement of Japanese midwives. The Midwives Professional Autonomy Scale extracted items from the midwives' "autonomy" and "specialty" literature, and 10 professionals verified the surface and content validity of the scale. Overall, 695 Japanese midwives participated in a survey, of which a sample of 399 was recovered. Exploratory factor analysis was performed using the sample to confirm the validity of the construct and internal consistency of the scale (Cronbach's alpha value 0.95). Additionally, the validity of the criteria was confirmed using the self-efficacy scale, self-esteem scale, and job satisfaction, and the stability was confirmed by test-retest reliability. Consequently, the professional autonomy scale for Japanese midwives comprised 24 items and 5 factors. This scale can thus be used to evaluate the professional autonomy of Japanese midwives and for midwifery education.