Intermittent reinforcement is an interesting procedure. In many ways, it is hard to distinguish between "no-food trials in an intermittent reinforcement schedule" and "extinction". In both cases, no food is delivered following the target response. More importantly, the removal or prevention of a reinforcer contingent on a particular response (response cost or neg. punishment) adds another twist to the question. Here is how I would address the question:
Extinction and Intermittent Reinforcement
By Wendy Williams on 01/01/2006
Filed in - Training Theory