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Investigation of the validity and reliability of the Turkish version of the Comprehensive Breastfeeding Knowledge
Merve Yazar Renkyorgancı1, Emel Ege2, Emine Geçkil3
1Lecturer Merve Yazar Renkyorgancı, Lecturer, KTO Karatay University, Faculty of Health Sciences, Department of Nursing, Konya, Turkey; Necmettin Erbakan University, Institute of Health Sciences, Obstetrics and Gynaecology Nursing, Konya, Turkey.
Objective:
This study was conducted to test the validity and reliability of the Turkish version of the Comprehensive Breastfeeding Knowledge Scale.
Method:
This methodological study was carried out between July 1, 2023, and May 1, 2024, in the Department of Obstetrics and Gynecology at a university hospital. Approvals were obtained from the original scale author, the ethics committee, the institution where data were collected, and the participants. The study sample comprised 350 participants, including 200 primiparous pregnant women and 150 postpartum women. For validity, the Content Validity Ratio (CVR) and Content Validity Index (CVI) were used to assess language and content validity, and Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) were performed to evaluate construct validity. For reliability, item analyses were conducted, and the Intraclass Correlation Coefficient (ICC) and Paired t-Test were used to determine test-retest reliability, while Cronbach's alpha coefficient was employed to assess internal consistency.
Results:
Of the women who participated in the study, 57.1 % were pregnant and 42.9 % were in the postpartum period. Among the participants, 39.7 % were between the ages of 18 and 25, 38.9 % were high school graduates, and 51.4 % had received breastfeeding education. EFA results revealed that the scale maintained a three-factor structure consistent with the original scale, the items were distributed across the factors in a similar manner, factor loadings ranged from 0.50 to 0.65, and the explained variance was 37.3 %. The CFA results indicated excellent model fit with a chi-square/df ratio of 1.912, and good fit indices, including GFI (0.904), RMSEA (0.051), and CFI (0.894).
Conclusion:
The findings of this study demonstrate that the Turkish version of the Comprehensive Breastfeeding Knowledge Scale is a valid and reliable measurement tool for assessing breastfeeding knowledge among primiparous pregnant and postpartum women. The scale can be utilized in descriptive studies evaluating breastfeeding knowledge and in experimental studies aimed at improving breastfeeding knowledge, as a pre-test and post-test assessment tool.
