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.

Which institution includes radio televisions and movies

The tea party movement is a. an official third party that challenges both democrats and republicans in national elections. b. an organized challenge to incumbents in the republican party by the most conservative wing of the republican party. c. an organized challenge to incumbents in the democratic party by the most liberal wing of the democratic party. d. an offspring of the green party that runs for state and local office in many midwestern states. e. the now defunct party that gave way to the republican party at the end of the “second party system.”

Which of the following is true about countries like england after they industrialized? a. workers usually made less money. b. people began moving to the country. c. time for leisure activities decreased. d. overall standard of living increased.