Increasing antibiotic resistance can be caused by the use of broad-spectrum antibiotics, which can increase morbidity and mortality. The Antimicrobial Stewardship Program (ASP) has been implemented globally to control antibiotic resistance. The presence of a multiprofessional health team such as physicians, pharmacists, microbiologists, and infection control (IPC) practitioners is a key requirement for implementing the ASP. The purpose of this study was to develop a questionnaire on pharmacists' knowledge, attitudes, and practice regarding Antimicrobial Stewardship. The questionnaire items were developed based on literature review and expert judgment. Validity testing used the Content Validity Index (CVI) method with expert judgment to assess the validity of each questionnaire item. Reliability testing was distributed to thirty pharmacists to measure the consistency of the questionnaire. Validity testing with the CVI obtained a value of 0.75–1.0, meaning that some items were invalid because the CVI was <0.83. Meanwhile, the reliability test showed that 7 items of knowledge variable statements had a corrected item-total correlation value > 0.25. All statement items on the attitude variable showed a corrected item-total correlation value > 0.25. 13 statement items on the behavior variable had a corrected item-total correlation value > 0.25. The developed questionnaire demonstrated acceptable validity and reliability and can be used to assess pharmacists’ knowledge, attitudes, and practices regarding antimicrobial stewardship.
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