Sorting procedures are frequently adopted as an alternative to dissimilarity ratings to measure the dissimilarity of large sets of stimuli in a comparatively short time. However, systematic empirical research on the consequences of this experiment-design choice is lacking. We carried out a behavioral experiment to assess the extent to which…

Behavior analysis has exploited conceptual tools whose experimental validity has been amply demonstrated, but their relevance to large-scale and fine-grained behavioral phenomena remains uncertain, because the experimental analysis of these domains faces formidable obstacles of measurement and control. In this essay I suggest that, at least at the…

The empirical study of knowledge representation is the focus of this paper, which observes that language as the cognitive instrument in the communication of phenomena must be capable of expressing relations of the observer-observation kind. The paper points out that this implies a coopeartive process at work in the production of a text, of which…