Designing and psychometric of reproductive health related behaviors assessment tool in Iranian males: an exploratory mixed method study protocol

Primary ovarian insufficiency quality of life scale (POIQOLS): development and psychometric properties

Background

Primary ovarian insufficiency is menopause before the age of 40. It can affect the quality of life of afflicted women. Because there is no instrument available for measuring the quality of life of these women, the present study was carried out to develop and assess the psychometric properties of the quality of life scale for women with primary ovarian insufficiency.

Methods

This exploratory sequential mixed method study was performed in two phases. In the qualitative phase (item generation), semi-structured in-depth interviews were conducted with 16 women having primary ovarian insufficiency, and a literature review was performed to generate initial items pool. In the quantitative phase (psychometric evaluation), the face, content, and construct validity (exploratory factor analysis), as well as reliability (internal consistency and test–retest methods), were evaluated. Besides, the responsiveness and interpretability were investigated.

Results

During the first phase of the study, the initial item pool was generated with 132 items. After the face and content validity, the number of items was reduced to 40. The results of exploratory factor analysis yielded a 28 item scale with six factors. These factors explained 58.55% of the total variance. The Cronbach’s alpha for each factor was more than 0.7. Furthermore, the intraclass correlation coefficient for the entire scale was 0.95.

Conclusions

The primary ovarian insufficiency quality of life scale (POIQOLS) is a valid and reliable tool for accessing the quality of life of women with primary ovarian insufficiency.

Psychometric properties of modified MOS social support survey 5-item (MSSS-5-item) among Iranian older adults

BACKGROUND

Social support is a key factor in public health. Since the precise evaluation of it is critical, the current study has been developed to evaluate the psychometric properties of the MOS-SSS questionnaire's abbreviated form (MSSS-5-item) among the Iranian older adults.

METHODS

This cross-sectional and methodological study was conducted on 420 community older adults (age ≥ 60) through random multi-stage sampling. The questionnaire was first translated into Persian through the Forward & Backward method based on WHO guidelines. Next, the validity of scales was investigated by calculating face validity, content validity, Known-group validity, explanatory factor analysis, and confirmatory factor analysis indices. The reliability of the questionnaire was calculated by internal consistency, test-retest, and absolute reliability. Moreover, the scalability of the questionnaire was checked through the Mokken scale analysis. The software packages SPSS version 22, AMOS version 22, and R (Mokken package) were employed to analyze the data.

RESULTS

the face validity was conducted using interviews with older adults and gathering the specialists' opinions. Then, the items were grammatically and lexically corrected accordingly. The CVI index of the overall scale was 0.94, and for every single item above 0.89. The results of the independent t-test showed that the current questionnaire well distinguished between the older adults who do and do not feel lonely (p < 0.001). Two components were recognized according to the explanatory factor analysis. They together explained 67.78% of the total variance of the questionnaire. The CFA showed that the two-factor model had acceptable fit indices. The questionnaire had desirable internal consistency (α = 0.78), stability (ICC = 0.98), and absolute reliability (SEM = 0.56, MDC = 1.57). Furthermore, the Mokken scale proved that MSSS-5-item was a strong scale (H = 0.51, se = 0.03).

CONCLUSION

The present study results showed that the MSSS-5-item questionnaire had suitable validity and reliability to be used among Iranian older adults.