Construct validity of the Menopause Rating Scale in Indonesia

Abstract

Objective: This study assessed the construct validity of the Menopause Rating Scale (MRS) in Indonesia.

Methods: The study included 240 women aged over 45 years in Indonesia. The MRS measures psychological, somatic-vegetative, and urogenital symptoms using 11 items obtained from participants’ daily symptom records. The intraclass correlation coefficient (ICC) and Cronbach’s alpha coefficient were measured to examine the test–retest reliability and internal consistency reliability. The test–retest reliability was evaluated by an extra 30 participants twice at 2-week intervals. For construct validity, exploratory factor analysis (EFA) was employed to assess factor structure and confirmatory factor analysis (CFA) was used to evaluate the structural model fit of the MRS.

Results: The ICC for the test–retest reliability ranged between 0.90 and 0.95. The Cronbach alpha coefficients in the somatic-vegetative, psychological, and urogenital dimensions were 0.92, 0.93, and 0.95, respectively. The Kaiser–Meyer–Olkin value was 0.96, and the Bartlett’s test of sphericity was statistically significant and adequate for EFA. CFA was tested using the second-order model with three first-order factors and yielded an excellent model fit.

Conclusion: Results indicated that the brief questionnaire of the MRS possesses acceptable construct validity for evaluating menopause symptoms in Indonesian women.

Chinese abstract

目的：评价印度尼西亚更年期量表（MRS）的有效性。

方法：研究对象为印尼45岁以上的女性240名。MRS能够从参与者的每日症状记录中通过11个项目来测量其心理、躯体症状和泌尿生殖系统症状。通过组内相关系数（ICC）和Cronbach’s α系数, 以检验测试-复测的可靠性和内部一致性的可靠性。通过增加额外30名参与者每隔2周评估两次来检验测试-再测试的可靠性。为了探讨MRS量表的有效性, 采用探索性因素分析（EFA）的方法来评估因素的构成, 并采用验证性因素分析方法（CFA）来评估MRS的模型拟合程度。

结果：测试-复测可信度的ICC介于0.90和0.95之间。躯体症状、心理和泌尿生殖系统症状的Cronbach’s α系数分别为0.92, 0.93和0.95。Kaiser–Meyer–Olkin值为0.96, Bartlett的球度测试具有统计学意义, 能够满足探索性因素分析。采用三个一阶因子的二阶模型对验证性因素分析进行了测试, 得到了一个很好的模型拟合。

结论：研究结果表明, 简易问卷式的MRS具有有效性, 能够对印尼更年期女性症状有很好的评估。

Keywords:

• Evaluation
• menopause
• construct validity

Ethical approval

This research was approved by the ethics research committee of a university in Malang on February 8, 2018 (approval number: E.5.a/039/KEPK-UMM/II/2018). The purpose of this research was to provide information to all participants. All of the participants provided written informed consent, and they had the right to withdraw during the study. In addition, this study was voluntary and anonymous.

Acknowledgements

This manuscript was edited by Wallace Academic Editing. M.-H. Chung contributed to data analysis, interpretation, and drafting the manuscript. H. Dwi Susanti contributed to the data collection and analysis, interpretation, and drafting the manuscript.

Conflict of interest

The authors declare that they have no conflicts of interest.

Additional information

Funding

The authors declare that this study received no funding.