On a Variable-Interval Schedule, Reinforcement Is Given _________

Multiple Choice

On a variable-interval schedule, reinforcement is given _________ .

A) for the first correct response after a fixed amount of time has passed
B) for the first correct response after varying amounts of time have passed
C) for the next correct response after a fixed number of responses have been made
D) for the next correct response after a varying number of responses have been made