Assessing Evidence-Based Practice Knowledge, Self-Efficacy, and Use Among Respiratory Therapists

Evidence-based practice is at the forefront of providing quality patient care by using the best available evidence and clinical expertise, while also considering patient needs and preferences for clinical decisions. However, evidence-based practice may not be consistently used even when the evidence supports the therapy. The purpose of this study was to assess the factors associated with the use of evidence-based practice among respiratory therapy faculty teaching in a large community college system and post-professional students enrolled in a university-based, respiratory therapy baccalaureate degree-advancement program.

A non-probability, descriptive survey research design was used to develop and administer an online questionnaire.

All respondents demonstrated sufficient knowledge and understanding of introductory concepts of evidence-based practice but knowledge of specific components of the evidence-based practice process was not as strong. Self-efficacy in knowledge and the use of evidence-based practice among faculty and degree-advancement students varied. Faculty and students rated their self-efficacy high in assessing patients' needs, values, and treatment preferences but ratings were lower for using the PICO (patient/population/problem, intervention, comparison, outcome) technique and interpreting common statistical tests. Students viewed their previous evidence-based practice learning experiences more favorably compared with faculty (P = .008). Faculty and students searched and read the research literature more often compared with critically appraising and using the research literature. Logistic regression analysis indicated no statistically significant relationship of knowledge, self-efficacy, and learning experiences to the use of evidence-based practice among respiratory therapy students, Χ ² (4, N = 54) = 7.73; P = .10.

Analysis of the results suggested that respiratory therapy faculty and students were knowledgeable and confident with regard to evidence-based practice but their use of evidence-based practice in clinical decisions was limited. Although the evidence-based practice knowledge, self-efficacy, and learning experiences had minimal influence on the use of evidence-based practice, the results of the study provide a foundation for future research.