Presented with the Sidman file (p. 335)

Baum, W. M. (2001). Molar versus molecular as a paradigm clash. Journal of the Experimental Analysis of Behavior, 75, 338-341.

The molar view of behavior arose in response to the demonstrated inadequacy of explanations based on contiguity. Although Dinsmoor’s (2001) modifications to two-factor theory render it irrefutable, a more basic criticism arises when we see that the molar and molecular views differ paradigmatically. The molar view has proven more productive.

Key words: molar view, molecular view, contiguity, atomism, two-factor theory, paradigm