Publication: Validity And Reliability Of Questionnaire Regarding Knowledge, Attitude, And Practice On Thalassaemia Among Caregivers Of Transfusion Dependent Thalassaemia Children
Date
2023-05
Authors
Mohd Shukuri, Nur Athirah
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Abstract
Introduction: Thalassaemia is a chronic disease that starts in early childhood and exerts significant pressure on the patient, their caregivers, and a country’s public health service. However, knowledge, attitude, and practice (KAP) studies performed specifically among parents or caregivers of thalassaemia are lacking proper validity and reliability testing. Objective: To develop a valid and reliable tool to assess KAP among caregivers of TDT children. This study also evaluated the validity and reliability of the aforementioned tool. Methods: A cross-sectional design among caregivers or parents of TDT thalassaemia children in four hospitals in the state of Kelantan. This study consisted of Phase I for the development of a new questionnaire and Phase II involving the distribution of research tool to assess validity and reliability. Evaluation included content and face validation, Item Response Theory (IRT) and Exploratory Factor Analysis (EFA) for construct validation, as well as internal consistency. Respondents were requested to answer a self administered questionnaire which took about 30 minutes to complete. Results: In Phase I, items were explored through an extensive review of literature and translated into Bahasa Malaysia. Content Validity was found to be satisfactory and 48 items were chosen. Face Validity was performed on 10 participants. For Phase II, a total of 107 caregivers were recruited. All 27 knowledge items were retained and Cronbach’s alpha was 0.82. Eleven out of the initial 14 attitude items were retained and internal consistency was 0.79. Cronbach’s alpha value was unacceptable for practice items despite removing questions with both low factor loading and low commonalities. Conclusion: The questionnaire regarding KAP among caregivers of TDT children generally has good validity and reliability. However, the practice domain requires revision in the future.
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Keywords
Reliability , questionnaire , Transfusion Dependent Thalassaemia , Kap , Nur Athirah