Duke-NUS Medical School, Singapore.
University of Pennsylvania, USA.
J Health Psychol. 2022 Aug;27(9):2227-2235. doi: 10.1177/13591053211025601. Epub 2021 Jun 29.
Many patients with advanced illness have unrealistic survival expectations, largely due to cognitive biases. Studies suggests that when people are motivated to be accurate, they are less prone to succumb to these biases. Using a randomized survey design, we test whether offering advanced cancer patients ( = 200) incentives to estimate their prognosis improves accuracy. We also test whether presenting treatment benefits in terms of a loss (mortality) rather than a gain (survival) reduces willingness to take up a hypothetical treatment. Results are not consistent with the proposed hypotheses for either accuracy incentives or framing effects.
许多患有晚期疾病的患者对生存时间抱有不切实际的期望，这主要是由于认知偏差所致。研究表明，当人们有动机追求准确性时，他们就不太容易受到这些偏差的影响。我们采用随机调查设计，检验为晚期癌症患者（n=200）提供预后估计的激励措施是否会提高准确性。我们还检验了以损失（死亡率）而不是收益（存活率）来呈现治疗益处是否会降低接受假设治疗的意愿。结果与关于准确性激励或框架效应的假设都不一致。
