Enrollment in prescription drug insurance: the interaction of numeracy and choice set size.
Enrollment in prescription drug insurance: the interaction of numeracy and choice set size.
复制标题
处方药保险的投保：计算能力和选择集大小的相互作用。
DOI：
10.1037/a0032738
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Bundorf,MKate
中科院分区：
文献类型：
--
作者：
Szrek,Helena;Bundorf,MKate
目的 确定选择集大小如何影响不同计算能力水平的个体选择处方药计划的决策质量。方法 年龄 65 岁及以上的互联网小组成员被随机分配到大小不等的处方药计划组中，他们从 2 到 16 个计划中做出假设选择。他们回答了有关入学可能性以及他们选择的成本和收益的问题。决策质量的衡量标准是那些对入学有利的人的入学可能性。计算了算术能力和选择集大小的入学可能性。分析了有调节的中介模型，以了解计算能力作为计划数量和招生决策质量之间关系的调节者的作用，以及成本和收益在调节这种关系中的作用。结果在少数备选方案中进行选择时，算数较多的成年人比算数较少的成年人做出更好的决策，但在选择集较大时则不然。选择集的大小对计算能力较差的成年人的决策影响不大。计算能力较高和较少的成年人之间决策成本的差异有助于解释选择集大小对决策质量的影响。结论在医疗保险 D 部分的背景下改善决策的干预措施可能对计算能力较低和较高的成年人产生不同的影响。心理学文献中关于选择超载的相互矛盾的结果可能部分是由于个体之间对选择集大小的反应不同而造成的。（PsycINFO 数据库记录 (c) 2016 APA，保留所有权利）
ObjectiveTo determine how choice set size affects decision quality among individuals of different levels of numeracy choosing prescription drug plans.MethodMembers of an Internet-enabled panel age 65 and over were randomly assigned to sets of prescription drug plans varying in size from 2 to 16 plans from which they made a hypothetical choice. They answered questions about enrollment likelihood and the costs and benefits of their choice. The measure of decision quality was enrollment likelihood among those for whom enrollment was beneficial. Enrollment likelihood by numeracy and choice set size was calculated. A model of moderated mediation was analyzed to understand the role of numeracy as a moderator of the relationship between the number of plans and the quality of the enrollment decision and the roles of the costs and benefits in mediating that relationship.ResultsMore numerate adults made better decisions than less numerate adults when choosing among a small number of alternatives but not when choice sets were larger. Choice set size had little effect on decision making of less numerate adults. Differences in decision making costs between more and less numerate adults helped explain the effect of choice set size on decision quality.ConclusionsInterventions to improve decision making in the context of Medicare Part D may differentially affect lower and higher numeracy adults. The conflicting results on choice overload in the psychology literature may be explained in part by differences amongst individuals in how they respond to choice set size.(PsycINFO Database Record (c) 2016 APA, all rights reserved)