In addition to a comparison of reversal during transfer with nonreversal shift to the same dimension, the experiment also evaluated the effect of nonreversal to a different dimension. The performance of all groups could be accounted for, in the main, by 2 factors: nonspecific transfer and a specific tendency to continue to respond in transfer to the dimension of stimuli reinforced during training. (PsycINFO Database Record (c) 2006 APA, all rights reserved)