Publication: Development and validation of questionnaire to evaluate knowledge, attitude and practice of point of care ultrasound (POCUS-Q) among medical officers in emergency department
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Date
2022
Authors
Derlip Singh, Kewaldeep Singh
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Abstract
Background: Point of Care Ultrasound (POCUS) is a focused bed-side examination that enable the emergency physician to interpret and use the information to address clinical presentation, to assist procedures, to address specific diagnosis, and to guide an on-going management of a patient. However, there is no standardized validated tool of assessment to evaluate knowledge, attitude and practice of POCUS among medical officers working in emergency department in Malaysia. We aim to develop and validate a new tool of assessment, POCUS-Q questionnaire to assess the knowledge, attitude and practice among medical officers in emergency department. Methods: This study consist of two phases, questionnaire development and psychometric assessment. The newly generated items were subjected to content validation by five panel of experts and face validation by 30 participants. Psychometric analysis involved medical officers from two different centres, Emergency Department Hospital Universiti Sains Malaysia and Emergency Department Hospital Pulau Pinang. Knowledge section was assessed using 2-parameter logistic model of Item Response Theory (IRT), while attitude and practice was assessed with Exploratory Factor Analysis (EFA) and internal consistency. Results: 57 items representing the knowledge, attitude and practice section were generated from guidelines and literature review, and 52 items were retained after content and face validation. All the items in the knowledge section obtained good standardized loading value of > 0.3 and adequate Root Mean Square Error of Approximation of 0.081. Two items were removed from attitude section in view of factor loading < 0.5, meanwhile all the items were retained in the practice section. Both attitude and practice demonstrated good internal consistency of 0.822 and 0.897 respectively. Conclusion: This study demonstrate that POCUS-Q questionnaire is a valid and reliable tool of assessment
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Keywords
Point of care ultrasound (POCUS) , questionnaire