One-year temporal stability of delay-discount rates
One-year temporal stability of delay-discount rates
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DOI：
10.3758/pbr.16.3.457
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发表时间：
2009-06-01
影响因子：
3.5
通讯作者：
Kirby, Kris N.
中科院分区：
文献类型：
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作者：
Kirby, Kris N.
货币奖励的延迟折扣率的时间稳定性进行了评估，使用货币选择问卷（Kirby & Marakovic，1996）。在100名在第一次会议上完成问卷的本科生参与者中，81人在5周后返回，46人在57周后返回进行后续会议。贴现率的5周重测稳定性为.77（95%置信区间= .67-.85），1年稳定性为.71（.50-84），57周稳定性为.63（.41-.77）。因此，至少当类似的测试情况下恢复，贴现率作为个体差异有1年的稳定性范围内，通常获得的人格特质。贴现率是一个人的属性，随着时间的推移相对稳定，但受到情况的影响，如奖励类型和剥夺状态。
The temporal stability of delay-discount rates for monetary rewards was assessed using a monetary choice questionnaire (Kirby & Marakovic, 1996). Of 100 undergraduate participants who completed the questionnaire at the initial session, 81 returned 5 weeks later and 46 returned 57 weeks later for subsequent sessions. The 5-week test-retest stability of discount rates was .77 (95% confidence interval = .67-.85), the 1-year stability was .71 (.50-84), and the 57-week stability was .63 (.41-.77). Thus, at least when similar testing situations are reinstated, discount rates as individual differences have 1-year stabilities in the range that is typically obtained for personality traits. Discount rates index an attribute of the person that is relatively stable over time but that is moderated by aspects of the situation, such as reward type and deprivational state.