Chimmalgi Mamata, Hortsch Michael
Department of Anatomy, Sree Gokulam Medical College & Research Foundation, Venjaramoodu, Trivandrum, Kerala India.
Departments of Cell & Developmental Biology and of Learning Health Sciences, University of Michigan Medical School, Ann Arbor, MI USA.
Med Sci Educ. 2022 Nov 7;32(6):1455-1464. doi: 10.1007/s40670-022-01669-9. eCollection 2022 Dec.
New technologies like virtual microscopy have revolutionized histology education. However, first-year students often require additional assistance with virtual slides. Online self-directed learning modules (SDLMs) were developed to provide such support to learners by offering them short instructional videos that are uploaded to YouTube and the instructional website. The purpose of this study was to determine the effectiveness of SDLMs and to sample students' opinions about SDLMs.
Over a 3-year time span, SDLMs were used to augment histology lessons, and their effectiveness (on learning outcomes) was measured by using traditional steeple-chase and/or virtual slide assessments. Average percentage scores for both methods of assessment were compared using paired or independent -tests. Student opinions about SDLMs were collected using an anonymous survey. The survey results were analyzed by average scores and thematic analysis of the narrative responses.
Using SDLMs in a blended approach showed significant improvement in students' academic performance - irrespective of the method of assessment. There was a strong positive correlation with the performance when students were assessed using the virtual slide method. However, a standalone approach using SDLMs did not positively impact learning outcomes. Survey results indicated that most students perceived the videos as helpful for understanding the subject better and as quick review opportunities.
The results support the use of SDLMs in a blended instructional approach and as an adjunct resource to conventional microscopy. This use of SDLMs was positively received by learners and significantly improved the learning outcome.
The online version contains supplementary material available at 10.1007/s40670-022-01669-9.
虚拟显微镜等新技术彻底改变了组织学教育。然而,一年级学生在使用虚拟切片时往往需要额外的帮助。在线自主学习模块(SDLMs)的开发是为了通过向学习者提供上传到YouTube和教学网站的简短教学视频来提供此类支持。本研究的目的是确定SDLMs的有效性,并抽样了解学生对SDLMs的看法。
在3年的时间跨度内,使用SDLMs来加强组织学课程,并通过传统的问答竞赛和/或虚拟切片评估来衡量其(对学习成果的)有效性。使用配对或独立t检验比较两种评估方法的平均百分比分数。通过匿名调查收集学生对SDLMs的看法。通过平均分数和对叙述性回答的主题分析来分析调查结果。
采用混合方法使用SDLMs显示学生的学业成绩有显著提高——无论评估方法如何。当使用虚拟切片方法评估学生时,成绩与之有很强的正相关。然而,单独使用SDLMs的方法对学习成果没有积极影响。调查结果表明,大多数学生认为这些视频有助于更好地理解课程内容,并提供了快速复习的机会。
结果支持在混合教学方法中使用SDLMs,并将其作为传统显微镜的辅助资源。学习者对这种使用SDLMs的方式给予了积极评价,并显著提高了学习成果。
在线版本包含可在10.1007/s40670-022-01669-9获取的补充材料。