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Blinding

Blinding

Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.

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Updated: Jan 18, 2026

Model Surgical Training: Skills Acquisition in Fetoscopic Laser Photocoagulation of Monochorionic Diamniotic Twin Placenta Using Realistic Simulators

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Published on: March 21, 2018

基于组的混合学习进行外科技能培训:一项随机对照研究.

Guang Zhang¹, Yin Cao¹, Xiaozhi Zhao²

¹Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Medical School, Nanjing University, Nanjing, China.

Journal of surgical education

|September 12, 2025

概括

与传统培训相比,一个增强的混合学习模型显著提高了医学学生的外科技能. 这种方法提高了对技能保留和临床相关性的信心,更好地为学生准备实践.

关键词:

欧安组织与欧洲安理会 (OSCE) 的合作.混合学习是一种混合学习.基于小组的学习是基于小组的学习.医学教育医学教育进行外科手术技能培训.

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科学领域:

医学教育医学教育
进行外科手术技能培训.
混合学习是一种混合学习.

背景情况:

医学学生在进入临床实践时,在外科手术过程中面临能力差距.
传统的教学方法可能无法完全弥合这一差距.
需要创新的教育方法来增强外科手术技能的学习.

研究的目的:

评估一种增强的混合学习方法在医学生中提高外科手术程序能力方面的有效性.
为了比较混合学习与传统面对面培训的结果.
评估学生对手术技能的满意度和信心.

主要方法:

一项随机对照试验,涉及南京大学医学院63名三年级医学学生.
干预小组:通过三元学习小组整合在线-离线课程.
控制组:传统的面对面培训. 通过欧安组织和3个月的满意度调查进行评估.

主要成果:

混合学习组表现出明显更高的技术技能表现 (p < 0.05),在手套/手套,切口/关闭,伤口护理和解剖术方面表现出色.
在手术手 scrub 能力上没有显著差异 (p = 0.095).
混合学习参与者对技能保留 (p = 0.03) 和感知到的临床相关性 (p = 0.01) 的信心更高,总体满意度相似.

结论:

与传统方法相比,增强的混合学习模型显著改善了手术技能的获取.
混合模型中的小组协作学习是其有效性的关键.
这种方法更好地为学生准备临床应用手术技术,同时保持学习者满意度.