Sometimes When We Call a Customer Service Center, We Are

Multiple Choice

Sometimes when we call a customer service center, we are put on hold; we do not know how long it will be before our holding behavior is reinforced by the response of an associated, and it doesn't matter what we do in the meantime. Holding is reinforced on a _______ schedule.

A) fixed-ratio
B) fixed-interval
C) variable-ratio
D) variable-interval