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The effect of spaced learning on the learning outcome and retention of nurse anesthesia students: a
Ali Khalafi1, Zahra Fallah2, Hamid Sharif-Nia3,4
1Department of Anesthesiology, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Background:
Poor learning and retention are common problems of students, which may be alleviated by optimization of widely used educational methods such as lectures. This study aimed to investigate the effect of spaced learning on the learning outcome and retention of nurse anesthesia students.
Methods:
This was a randomized controlled study with a pre-and post-test design on 64 nurse anesthesia students who were divided into two groups of spaced lecture (n = 32) and conventional lecture (n = 32). The spaced lectures included three 30-minute training sessions with 10-minute intervals while the conventional sessions including 90 min of continuous training. Students' knowledge was measured using one valid and reliable questionnaire developed by the research team. All students in both groups took a pre-test, and their level of knowledge acquisition was evaluated immediately after the training. Their level of knowledge retention was tested two and four weeks after the lecture.
Results:
There was no significant difference between the two groups regarding demographic characteristics (p > 0.05). In the pre-test, the mean score of knowledge in the intervention group was lower than that in the control group, there was no significant difference (p = 0.177). But after the intervention, the mean scores of learning outcome and retention in the intervention group were significantly higher than those in the control group (p < 0.001, eta = 0.576). Also, the results showed that learning outcome and retention across the three academic semesters in the two groups are significantly different, and students with a higher academic semester obtained a significantly higher mean score of knowledge and retention (p < 0.001, eta = 0.604).
Conclusion:
Spaced learning improves nurse anesthesia students' knowledge and retention more than conventional method. Future studies focusing on spaced learning should specifically examine the impact of duration and number of intervals, as well as the time gap between training and measurement of learning retention.
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