Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/43665
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Type: Journal article
Title: Does response scaling cause the generalized context model to mimic a prototype model?
Author: Myung, J.
Pitt, M.
Navarro, D.
Citation: Psychonomic Bulletin & Review, 2007; 14(6):1043-1050
Publisher: Psychonomic Soc Inc
Issue Date: 2007
ISSN: 1069-9384
1531-5320
Statement of
Responsibility: 
Jai I. Myung and Mark A. Pitt; Daniel J. Navarro
Abstract: Smith and Minda (1998, 2002) argued that the response scaling parameter γ in the exemplar-based generalized context model (GCM) makes the model unnecessarily complex and allows it to mimic the behavior of a prototype model. We evaluated this criticism in two ways. First, we estimated the complexity of the GCM with and without the γ parameter and also compared its complexity to that of a prototype model. Next, we assessed the extent to which the models mimic each other, using two experimental designs (Nosofsky & Zaki, 2002, Experiment 3; Smith & Minda, 1998, Experiment 2), chosen because these designs are thought to differ in the degree to which they can discriminate the models. The results show that γ can increase the complexity of the GCM, but this complexity does not necessarily allow mimicry. Furthermore, if statistical model selection methods such as minimum description length are adopted as the measure of model performance, the models will be highly discriminable, irrespective of design.
Keywords: Humans; Psychology; Learning; Concept Formation; Reaction Time; Models, Psychological
Description: Copyright © 2007 Psychonomic Society, Inc
RMID: 0020074009
DOI: 10.3758/BF03193089
Appears in Collections:Psychology publications

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