相关实验视频
Updated: Jul 11, 2026
09:55
Monitoring Acupuncture Effects on Human Brain by fMRI
Published on: April 8, 2010
15.3K
针随机模拟对照试验中的盲目评估:系统调查的协议
Jiahui Yang1,2, Jiali Liu2,3,4, Xiaochao Luo2,3,4
1Jiangxi University of Chinese Medicine, Nanchang City, Jiangxi Province, China.
BMJ open
|January 22, 2025
概括
本研究在随机对照试验 (RCT) 中检查了假针,以评估失明的有效性及其对治疗效果大小的影响. 这些发现将指导未来的针研究设计和解释.
科学领域:
- 综合医学是一个整体医学.
- 临床试验方法论 临床试验方法论
- 基于证据的实践.
背景情况:
- 针随机对照试验 (RCT) 中的失明对于最大限度地减少偏见至关重要.
- 存在各种假针技术,但它们在使参与者和研究人员失明方面的有效性尚未得到充分证实.
- 对于针RCT中治疗效果大小估计的失明效果的影响仍然不清楚.
研究的目的:
- 确定虚假控制针试验中报告失明评估的比例.
- 评估不同的假针方法在成功实现失明方面的有效性.
- 调查针RCT中盲目的有效性和观察到的效果大小之间的关系.
主要方法:
- 在PubMed和EMBASE的系统文献搜索将在2025年1月1日之前进行.
- 数据提取和资格评估将由配对,独立的调查人员进行.
- 盲目的有效性将使用詹姆斯和Bang盲目的指数进行评估,并使用随机效应模型进行元分析. 治疗效应将使用Hedges的g计算,并将使用Pearson的r或非参数测试来检查与失明效率的相关性.
主要成果:
- 将计算出评估和报告令人眼花乱的成功率的假控制试验的比例.
- 将对研究特征进行描述性分析,针干预,假冒手术和盲目评估.
- 各种假针技术的有效性将使用已建立的失明指数进行评估.
结论:
- 这项研究将为针RCT中盲目的质量提供关键的见解.
- 结果将为未来针试验的设计和解释提供信息,增强方法论的严谨性.
- 将为临床医生,政策制定者和指导方针制定者制定有关虚假针研究中盲目的评估的建议.
相关概念视频
02:07Blind Procedures
Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which child was...
01:11Blinding
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.