De Schryver Maarten, Vandist Katleen, Rosseel Yves
Ghent University, Ghent, Belgium.
Psychon Bull Rev. 2009 Apr;16(2):337-43. doi: 10.3758/PBR.16.2.337.
The goal of this research is to test the hypothesis that a category is not necessarily represented by all observed exemplars, but by a reduced subset of these exemplars. To test this hypothesis, we made use of a study reported by Nosofsky, Clark, and Shin (1989), and replicated their Experiment 1 in order to gather individual-participant data. Both a full exemplar model and a reduced exemplar model were fit to the data. In general, the fits of the reduced exemplar model were superior to those of the full exemplar model. The results suggest that only a subset of exemplars may be sufficient for category representation.
一个类别不一定由所有观察到的样例来表征，而是由这些样例的一个精简子集来表征。为了检验这一假设，我们采用了诺索夫斯基、克拉克和申（1989年）报告的一项研究，并重复了他们的实验1以收集个体参与者的数据。一个完整样例模型和一个精简样例模型都被用于拟合数据。总体而言，精简样例模型的拟合效果优于完整样例模型。结果表明，仅样例的一个子集就可能足以进行类别表征。
