Development and validation of a multiple-choice question-based delirium care knowledge quiz for critical care nurses

Abstract

Aims: To develop and psychometrically test a multiple choice questions (MCQs) based quiz of delirium care knowledge for critical care nurses. Design: Instrument development and psychometric evaluation study. Methods: The development and validation process including two phases. Phase I focused on the quiz development, conducted by the following steps: (1) generated initial 20 items pool; (2) examined content validity and (3) face validity; (4) conducted pilot testing, data were collected from 217 critical care nurses via online survey during 01 October to 07 November, 2020; (5) performed item analysis and eliminated items based on the item difficulty and discrimination indices. The MCQs quiz was finalised through the development process. Then, phases II emphasised the quiz validation, to estimate the internal consistency, split half and test-retest reliability, and construct validity using parallel analysis with the exploratory factor analysis (EFA). Results: A final 16 items MCQs quiz was emerged from the item analysis. The Kuder Richardson Formula 20 coefficient for the overall quiz showed good internal consistency (0.85), and the intraclass correlation coefficient with a 30 days interval also indicated that the questionnaire had satisfactory stability (0.96). The EFA confirmed appropriate construct validity for the quiz, four factors could explain the total variance of 60.87%. Conclusion: This study developed the first MCQs quiz for delirium care knowledge and it is a reliable and valid tool that can be implemented to assess the level of delirium care knowledge. Impact: This study offers an evidence based quiz designed for future research and education purposes in delirium care that has significant implications for knowledge test by using MCQs in clinical practice.