Gärling Tommy, Gamble Amelie, Juliusson Asgeir
Department of Psychology, Göteborg University, Göteberg, Sweden.
J Exp Psychol Appl. 2007 Mar;13(1):1-10. doi: 10.1037/1076-898X.13.1.1.
In 3 experiments, the authors investigated learning of the value of money from product prices in an unfamiliar currency when the prices are proportional to quantity. In support of the second stage of a hypothesized 2-stage process of learning, Experiment 1, in which 32 undergraduates participated, shows that response times for inferences of quantity are longer when participants are presented with quantity-price pairs than when they are presented with price-quantity pairs. Experiments 2 and 3, in which 54 and 34 undergraduates participated, respectively, show that (a) stochastic price variation causes systematic errors in the learning of unit prices from quantity-price pairs as a result of judgmental regression effects and (b) in support of the 2-stage learning hypothesis, inferences of quantity are the inverse of the learned unit prices.
在3项实验中，作者研究了在价格与数量成比例的情况下，人们如何从不熟悉货币的产品价格中学习货币价值。为支持假设的两阶段学习过程的第二阶段，实验1有32名本科生参与，结果显示，当向参与者呈现数量-价格对时，他们对数量进行推理的反应时间比呈现价格-数量对时更长。实验2和实验3分别有54名和34名本科生参与，结果表明：（a）由于判断性回归效应，随机价格变化会导致从数量-价格对中学习单价时出现系统性误差；（b）为支持两阶段学习假设，数量推理与所学单价呈反比。
