Pavlov Discovered That Conditioned Responses Seldom Occur at Full Strength

Multiple Choice

Pavlov discovered that conditioned responses seldom occur at full strength right away but,rather,gradually build up over a series of trials.Based on this finding,psychologists initially believed that the key to acquiring a conditioned response was ____.

A) the order of CS-UCS pairings
B) the order and number of CS-UCS pairings
C) the number of CS-UCS pairings
D) the timing of CS-UCS pairings