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Psychometric properties of a novel knowledge assessment tool of mechanical ventilation for emergency medicine residents in the northeastern United States
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Jeremy B. Richards
 , Tania D. Strout, Todd A. Seigel, Susan R. Wilcox
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J Educ Eval Health Prof. 2016;13:10. Published online February 16, 2016
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DOI: https://doi.org/10.3352/jeehp.2016.13.10
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 Abstract
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- Purpose
Prior descriptions of the psychometric properties of validated knowledge assessment tools designed to determine Emergency medicine (EM) residents understanding of physiologic and clinical concepts related to mechanical ventilation are lacking. In this setting, we have performed this study to describe the psychometric and performance properties of a novel knowledge assessment tool that measures EM residents’ knowledge of topics in mechanical ventilation.
Methods
Results from a multicenter, prospective, survey study involving 219 EM residents from 8 academic hospitals in northeastern United States were analyzed to quantify reliability, item difficulty, and item discrimination of each of the 9 questions included in the knowledge assessment tool for 3 weeks, beginning in January 2013.
Results
The response rate for residents completing the knowledge assessment tool was 68.6% (214 out of 312 EM residents). Reliability was assessed by both Cronbach’s alpha coefficient (0.6293) and the Spearman-Brown coefficient (0.6437). Item difficulty ranged from 0.39 to 0.96, with a mean item difficulty of 0.75 for all 9 questions. Uncorrected item discrimination values ranged from 0.111 to 0.556. Corrected item-total correlations were determined by removing the question being assessed from analysis, resulting in a range of item discrimination from 0.139 to 0.498.
Conclusion
Reliability, item difficulty and item discrimination were within satisfactory ranges in this study, demonstrating acceptable psychometric properties of this knowledge assessment tool. This assessment indicates that this knowledge assessment tool is sufficiently rigorous for use in future research studies or for assessment of EM residents for evaluative purposes.
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Citations
Citations to this article as recorded by  - Comparison of three methods for teaching mechanical ventilation in an emergency setting to sixth-year medical students: a randomized trial
Fernando Sabia Tallo, Letícia Sandre Vendrame, André Luciano Baitello
Revista da Associação Médica Brasileira.2020; 66(10): 1409. CrossRef - Critical Appraisal of Emergency Medicine Educational Research: The Best Publications of 2016
Nicole M. Dubosh, Jaime Jordan, Lalena M. Yarris, Edward Ullman, Joshua Kornegay, Daniel Runde, Amy Miller Juve, Jonathan Fisher, Teresa Chan
AEM Education and Training.2019; 3(1): 58. CrossRef - Mechanical Ventilation Training During Graduate Medical Education: Perspectives and Review of the Literature
Jonathan M. Keller, Dru Claar, Juliana Carvalho Ferreira, David C. Chu, Tanzib Hossain, William Graham Carlos, Jeffrey A. Gold, Stephanie A. Nonas, Nitin Seam
Journal of Graduate Medical Education.2019; 11(4): 389. CrossRef - Development and validation of a questionnaire to assess the knowledge of mechanical ventilation in urgent care among students in their last-year medical course in Brazil
Fernando Sabia Tallo, Simone de Campos Vieira Abib, Andre Luciano Baitello, Renato Delascio Lopes
Clinics.2019; 74: e663. CrossRef
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