Moeini Babak, Erfani Amir, Barati Majid, Doosti-Irani Amin, Hosseini Hatam, Soheylizad Mokhtar
Social Determinants of Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
Department of Sociology and Anthropology, Faculty of Arts and Science, Nipissing University, North Bay, ON, Canada.
Korean J Fam Med. 2023 Mar;44(2):109-116. doi: 10.4082/kjfm.22.0066. Epub 2023 Mar 20.
Childbearing is the most important determinant of population fluctuations, and its study is more important than other population phenomena. Owing to the lack of a valid questionnaire based on the extended theory of planned behavior, this mixed-method study was conducted to determine the validity and reliability of a questionnaire designed to examine related belief-based factors on the intention to bear children in Iranian society.
This study was conducted in two phases in Hamadan city, western Iran, in 2021. Phase 1 consisted of an extensive literature review and a qualitative study using a directed content analysis approach to generate an item pool. Psychometrics were measured in phase 2, including content, face, and construct validity. Reliability was assessed based on internal consistency and stability. The collected data were analyzed using IBM SPSS and AMOS ver. 24.0.
Mean content validity ratio and content validity index were 0.7 and 0.85, respectively. Exploratory factor analysis of the 32 items identified an eight-factor solution. These factors jointly accounted for 79.1% of the observed variance in the outcome variables. Confirmatory factor analysis indicated a good fit for the data. The internal consistency based on Cronbach's α was 0.85 (0.71-0.93). In addition, stability was confirmed using the test-retest method and intraclass correlation coefficient (0.74-0.94).
The designed questionnaire is a valid and reliable instrument for evaluating related belief-based factors on the intention and behavior of childbearing among married men and women in Iran.
生育是人口波动的最重要决定因素，对其的研究比其他人口现象更为重要。由于缺乏基于计划行为扩展理论的有效问卷，本混合方法研究旨在确定一份旨在检验伊朗社会中与生育意愿相关的基于信念因素的问卷的有效性和可靠性。
本研究于2021年在伊朗西部的哈马丹市分两个阶段进行。第一阶段包括广泛的文献综述和采用定向内容分析法的定性研究，以生成项目池。第二阶段测量心理测量学指标，包括内容效度、表面效度和结构效度。基于内部一致性和稳定性评估信度。使用IBM SPSS和AMOS 24.0对收集的数据进行分析。
平均内容效度比和内容效度指数分别为0.7和0.85。对32个项目的探索性因素分析确定了一个八因素解决方案。这些因素共同解释了结果变量中79.1%的观测方差。验证性因素分析表明数据拟合良好。基于Cronbach's α的内部一致性为0.85（0.71 - 0.93）。此外，使用重测法和组内相关系数（0.74 - 0.94）证实了稳定性。
所设计的问卷是评估伊朗已婚男女生育意愿和行为的相关基于信念因素的有效且可靠工具。
