"This study points out the advantages of obtaining distributions of responses permitted to vary along a scaled continuum in order to determine the effects of response similarity upon response generalization…. It is shown that generalization of individual responses is significantly smaller for the condition of greater intratask response similarity. This condition results in steeper generalization gradients…. The procedure and results of this study are compared with those of discrete S-R tasks investigating the effects of response similarity." (PsycINFO Database Record (c) 2006 APA, all rights reserved)