In order to get her 2nd grade students to memorize the poem written on the chalkboard, Mrs. Thyberg gives the students stickers for each poem they can recite from memory. After earning 5 stickers, a student gets to pick a prize out of the goody box. Mrs. Thyberg is using (a) __________ to modify the children's behaviors.

Why did the staff at the psychiatric hospital give Kevin Warner injections of antipsychotic medication?

a. People with Kevin's blood type do not respond to medication in pill form. b. A high level of gastric juices in his digestive system destroyed the medication. c. He only pretended to take the pills because he believed people were trying to poison him. d. Antipsychotic drugs given by injection do not have the same serious side effects as those in pill form.

According to Medvec and Savitsky's (1997) research on counterfactual thinking among Olympic medalists, which of the following is true? a. Bronze and silver medalists are equally likely to think "What if I had won the gold?" b. Silver medalists are happier with their standing than bronze medalists, because silver medalists think abouthow they could have done worse and received the bronze

c. Silver medalists are less happy with their standing than bronze medalists, because silver medalists think abouthow they could have done better and won the gold. d. Bronze medalists are more envious of silver medalists than of gold medalists.