A pigeon pecks a red key and is reinforced for a peck after either 5 seconds, 10 seconds, 15 seconds, 25 seconds, 30 seconds, or 40 seconds, with these times arranged in random order. The pigeon is on a(n) _______ schedule.
A) FI
B) VI
C) FR
D) VR

Question

Quizplus · Accepted Answer

The pigeon is on a Variable Interval (VI) schedule because reinforcement is provided for the first response after a varying, unpredictable amount of time has passed, rather than after a set number of responses or a fixed interval of time.

A Pigeon Pecks a Red Key and Is Reinforced for a Peck