Molly is eating red and black jellybeans from a paper bag. she is not looking at the jellybeans as she eats them. she likes red jellybeans, but she does not like black jellybeans. the amount of jellybeans she has to take from the jar before she gets a red one is never the same. which of the following statements is true? a. molly is on a fixed-interval schedule of reinforcement. b.molly is on a variable-interval schedule of reinforcement. c.molly is on a fixed-ratio schedule of reinforcement. d.molly is on a variable-ratio schedule of reinforcement.

D. Molly is on a variable-ratio schedule of reinforcement.

Explanation:

Variable-ratio schedule: In psychology, the term variable-ratio schedule is a reinforcement schedule which is a part of the operant conditioning theory. The variable-ratio schedule is defined as a reinforcement schedule whereby a response is being reinforced after an uncountable number of responses. This schedule is considered to be a high and steady responding rate.

Example: Gambling.

In the question above, the given statement signifies that Molly is on a variable-ratio schedule of reinforcement.

answer(c); cultural values may have affected jack's grandmother's and aunt's belief about extended family;