Nesbitt Craig I, Phillips Alexander W, Searle Roger F, Stansby Gerard
Northern Vascular Centre, Freeman Hospital, Newcastle upon Tyne, United Kingdom.
Northern Oesophagogastric Centre, Royal Victoria Infirmary, Newcastle upon Tyne, United Kingdom.
J Surg Educ. 2015 Jul-Aug;72(4):697-703. doi: 10.1016/j.jsurg.2014.12.013. Epub 2015 Feb 18.
Feedback is a vital component of the learning process; however, great variation exists in the quality, quantity, and method of delivery. Video feedback is not commonly used in the teaching of surgical skills. The aim of this trial was to evaluate the benefit of 2 types of video feedback-individualized video feedback (IVF), with the student reviewing their performance with an expert tutor, and unsupervised video-enhanced feedback (UVF), where the student reviews their own performance together with an expert teaching video-to determine if these improve performance when compared with a standard lecture feedback.
A prospective blinded randomized control trial comparing lecture feedback with IVF and UVF was carried out. Students were scored by 2 experts directly observing the performance and 2 blinded experts using a validated pro forma. Participants were recorded on video when performing a suturing task. They then received their feedback via any of the 3 methods before being invited to repeat the task.
A total of 32 students were recruited between the 3 groups. There was no significant difference in suturing skill performance scores given by those directly observing the students and those blinded to the participant. There was no statistically significant difference between the 2 video feedback groups (p = 1.000), but there was significant improvement between standard lecture feedback and UVF (p = 0.047) and IVF (p = 0.001).
Video feedback can facilitate greater learning of clinical skills. Students can attain a similar level of surgical skills improvement with UVF as with teacher-intensive IVF.
反馈是学习过程的重要组成部分;然而,反馈的质量、数量和传递方式存在很大差异。视频反馈在外科手术技能教学中并不常用。本试验的目的是评估两种类型的视频反馈的益处——个性化视频反馈(IVF),即学生与专家导师一起回顾自己的表现,以及无监督视频增强反馈(UVF),即学生将自己的表现与专家教学视频一起回顾——以确定与标准讲座反馈相比,这些反馈是否能提高表现。
进行了一项前瞻性双盲随机对照试验,比较讲座反馈与IVF和UVF。由2名直接观察表现的专家和2名使用经过验证的表格的盲法专家对学生进行评分。参与者在执行缝合任务时进行视频记录。然后,他们通过三种方法中的任何一种接收反馈,之后被邀请重复该任务。
三组共招募了32名学生。直接观察学生的专家和对参与者情况不知情的专家给出的缝合技能表现评分没有显著差异。两个视频反馈组之间没有统计学上的显著差异(p = 1.000),但标准讲座反馈与UVF(p = 0.047)和IVF(p = 0.001)之间有显著改善。
视频反馈有助于更好地学习临床技能。学生通过UVF获得的手术技能提升水平与教师密集型IVF相似。