1. Of the four explanations of the PRE, the one that essentially says there is no such thing is the ………………………. hypothesis. 2. If reinforcement is contingent on the behavior of more than one...

1. Of the four explanations of the PRE, the one that essentially says there is no such thing is the ………………………. hypothesis.

2. If reinforcement is contingent on the behavior of more than one individual, a ………………………. schedule is in effect.