Development and Psychometric Evaluation of A Prenatal Medication Adherence Questionnaire (P-MASQ) for Use During Pregnancy

Fitri Nurussani Aulia, Eccita Rahestyningtyas, Rista Fauziningtyas, Elida Zairina

Abstract

Background: This study aimed to develop and evaluate the psychometric properties of the Prenatal Medication Adherence Questionnaire (P-MASQ), designed to assess the degree of adherence to medications, vitamins, and supplements among pregnant women.

Methods: A one-month cross-sectional study was conducted at the obstetrics and gynecology outpatient clinic of the Universitas Airlangga Hospital, Surabaya. A total of 135 pregnant women using medications, vitamins, and/or supplements were recruited using convenience sampling. Reliability was assessed using Cronbach’s alpha, while validity was evaluated using the Content Validity Index (CVI), Pearson’s product-moment correlation, and Exploratory Factor Analysis (EFA). Data were analyzed using the IBM SPSS version 26.

 Results: Construct validity was evaluated using exploratory factor analysis (EFA). The KMO value was 0.723, indicating adequate sampling adequacy, while Bartlett’s test was significant (p < 0.001), confirming the suitability of the data for factor analysis. All items had factor loadings above 0.50, demonstrating acceptable construct validity. The questionnaire also showed good internal consistency (Cronbach’s alpha > 0.70), and all items were valid based on significant Pearson’s correlation coefficients (p < 0.05).

 Conclusions: The 10-item P-MASQ demonstrated good validity and reliability and can be used to assess adherence to medications, vitamins, and supplements during pregnancy.

Keywords

Pregnancy; Medication adherence; Vitamins; Validity and Reliability

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DOI: https://doi.org/10.13057/smj.v9i2.107734

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