在提供多种替代方案的情况下,医疗决策
1Department of Medicine, University of Toronto, Ontario, Canada.
JAMA
|January 25, 1995
概括
添加更多的选择可以悖论地使人们不太可能选择任何选项,一种可以影响医疗决策的认知偏见. 了解这一点有助于改善复杂的决策过程.
科学领域:
- 认知心理学 认知心理学
- 医疗决策的制定 医疗决策的制定
- 行为经济学是一种行为经济学.
背景情况:
- 可用选项的数量可以影响决策过程.
- 了解认知偏见对于有效的决策至关重要,特别是在医学等高风险领域.
研究的目的:
- 研究增加选择对选择行为的悖论性影响.
- 为了确定是否提出更多的选择导致避免或现状偏见.
主要方法:
- 采用了一份邮寄的调查与医疗场景,呈现在两个版本:基本 (两个选项) 和扩展 (三个选项).
- 参与者包括医生 (家庭医生,神经科医生,神经外科医生) 和立法者.
- 场景被随机分配给参与者.
主要成果:
- 当医生有两个选择而不是一个选择时,医生不太可能推治疗骨关节炎的药物.
- 在神经外科医生关于动脉手术的决定和立法者关于关闭医院的选择中观察到类似的模式.
- 增加的选择导致了决策困难和保持现状或避免选择的倾向.
结论:
- 引入额外的选项可以增加决策难度,导致对不采取行动或选择默认选项的偏见.
- 意识到这种认知偏见对于改善复杂的医疗和政策环境中的决策至关重要.
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