Farsi version of the Multidimensional Health Locus of Control and God Locus of Health Control Scales: validity and reliability study among Iranian women with a family history of breast cancer

Objective: to determine the persian version's reliability and validity of the multidimensional health locus of control and god health locus of control scales among women with family history of breast cancer. methods: the cross-sectional study was conducted in sabzevar, iran, in 2012. it randomly selected women with family members affected by breast cancer. predesigned questionnaires were completed through interviews. content and face validity was evaluated using the opinions of a panel of experts, and construct validity was confirmed by applying confirmatory factor analysis. the instruments' reliability was assessed using cronbach's alpha and test-retest reliability. results: there were 200 women in the study with their age ranging between 18 and 69 years and revealed the following; root mean square error of approximation for multidimensional health locus of control scale = 0.013, and god locus of health control scale = 0.077; comparative fit index = 0.999, 0.998; incremental fit index = 0.999, 0.998;tucker-lewis fit index = 0.998, 0.998; and normed fit index = 0.983, 0.997 respectively. cronbach's alpha was 0.61 for internal health locus of control, 0.8 for chance health locus of control, 0.68 for power health locus of control and 0.9 for god locus health control. conclusion: the persian version of the subscales supported the main version.