Designing the Validity and Reliability of Osteoporosis Prevention Instrument based on Health Belief Model in women

Assessment tools and questi-onnaires that are used in research to measure the achievement of research ob-jecttives must be standardized themselves to ensure the results. The aim of this study was to design the validity and reliability of osteoporosis prevention instrument based on health belief model in women.

This cross-sectional study was carried out on 400 women، aged 30 to 50 years old، in Fasa city. After revi-ewing the related literature، a suitable instr-ument was designed and its content validity ratio، content validity index، face validity، and exploratory factor analysis were mea-sured. For measuring the reliability of the scales، three methods، including test-retest، internal consistency، and agreement were used. Data analysis was done using SPSS software.

Reliability of 42 items with imp-act score of 0. 15 and content validity index of 0. 79 were evaluated based on explo-ratory factor analysis and classified into se-ven categories. The overall reliability، me-asured through Cronbach alpha، was 0. 87. Reliabilities of knowledge questionnaire، perceived susceptibility، perceived severity، perceived benefits، perceived barriers، mot-ivation، self-efficacy، and cue to action were 0. 86، 0. 71، 0. 82، 0. 79، 0. 82، 0. 77، 0. 79، and 0. 77، respectively. Discussion &

This study prov-ided good evidence on the strength of factor structure and reliability of Health Belief Model structures for prevention of oste-oporosis women، according to the study of psychometrics process.