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Updated: Jun 12, 2025

A Method to Test the Efficacy of Handwashing for the Removal of Emerging Infectious Pathogens
Published on: June 7, 2017
Impact and learner perspectives of a spaced-education platform to assess hand hygiene auditor competency
Ana M Vaughan-Malloy1,2,3, Renée Lehane1, Mary M Wells1
1Infection Prevention and Control, Boston Children's Hospital, Boston, MA, USA.
Objective:
To ensure whether spaced education, which increases long-term knowledge retention, could be integrated into auditor competency assessment.
Design:
Quality improvement project.
Setting:
Academic, freestanding children's hospital.
Participants:
Hand hygiene (HH) auditors.
Intervention:
We enrolled trained HH auditors in an online spaced-education platform to assess mastery of knowledge, delivering 46 unique questions at spaced intervals followed by rationale; we retired questions after 3 correct answers. An e-mailed 10-item survey gauged participant satisfaction with the program. The Wilcoxon signed-rank test was used to compare change in median knowledge score from first to final attempt.
Results:
A total of 12,120 questions were attempted by 126 auditors, and 49 (39%) completed the entire course. Median knowledge score increased significantly by 10.5 percentage points (IQR 4-15) between first and final attempts (P < 0.001). Thirty auditors (27%) responded to the survey. The majority agreed the number and complexity of questions were appropriate (57% and 67%, respectively). Eighty-seven percent reported the platform easy to navigate, and 77% agreed adequate time was provided for completion. Free-text suggestions included delivering fewer questions at a narrower spacing interval over a shorter time frame because of competing work demands.
Conclusions:
Auditor knowledge of HH indications and technique is critical to ensuring data validity. A spaced-education competency program improved HH auditor knowledge in the short term. Completion rate was low, and some participants expressed a desire for fewer questions over a shorter time frame. This study offers insight into ways to optimize spaced education as a potential tool for HH competency assessment.
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