Investigating the psychometric properties of the Persian version of the attitude scale for cancer screening.

BACKGROUND: Individual attitude is an essential component in facilitating people's participation in adopting cancer screening behaviors. People's attitudes toward cancer screening should be evaluated with a valid and reliable scale. Therefore, this study investigated the psychometric properties of the Persian version of the attitude scale for cancer screening. METHOD: In this psychometric study, the Farsi version of the attitude scale for cancer screening was prepared from English to Farsi using the Backward-Forward method. Then content, face, and construct validity, plus reliability, was evaluated by Internal Consistency and Stability methods. Construct validity was investigated using Exploratory Factor Analysis with a sample of 246 adults referring to health centers in the south of Tehran. Data analysis was done using SPSS V24 software. RESULTS: All items received an acceptable Content Validity Ratio. The content Validity Index was confirmed for all items with a value greater than 0.79. In the qualitative review of content and face validity, all items were confirmed. Unlike the original version of the scale, which was a single factor, the results of Exploratory Factor Analysis indicated the existence of 2 factors explaining 63.84% of the total variance of the scale. Reliability based on Cronbach's alpha coefficient for the whole scale was 0.88, and Intraclass Correlation Coefficient for the entire scale was calculated for scale reliability using the single-rating, absolute-agreement, 2-way mixed-effects method as 0.84. CONCLUSION: This study confirmed the validity and reliability of the Persian version of the attitude scale for cancer screening with two factors (Willing Attitude and Unwilling Attitude). Therefore, it can be a suitable and valid scale to evaluate the attitude of the community for cancer screening.

Validity and reliability of the Persian version of the Short-Form Adolescent Health Promotion scale: Methodological study.

Background and Aim: Assessing health promotion among adolescents is vital to identify healthy and unhealthy behaviors and to evaluate health promotion interventions. This study aimed to determine the validity and reliability of the Persian version of the Short-Form Adolescent Health Promotion scale. Methods: Three hundred and twenty-seven adolescents were recruited through a multistage sampling method in this methodological study. The original version of the Adolescent Health Promotion scale was translated from English to Persian using the Backward-Forward translation protocol. Then, the scale's validity and reliability, including the face, content, construct validity, and reliability indices, were evaluated. The statistical analysis was performed using SPSS software version 24. Results: The mean CVI and CVR were 0.99. The exploratory factor analysis revealed four factors covering 42.57% of the total variance. The factor loading order of the items did not exactly correspond to the order obtained in the English version of the scale's validity and reliability analysis. The obtained factors called included: life appreciation, stress management, nutrition, and health responsibility. In the current study, both Cronbach's ɑ and the intraclass correlation coefficient were calculated at 0.84 and 0.99. Conclusion: The Persian version of the Adolescent Health Promotion scale developed in the present study is acceptable for the validity of the content, face, and reliability. However, the construct validity of this scale should be checked in other samples.