Depending on the drug, what percentage of multiple births results from using fertility drugs?

In a study by Bandura and Perloff (1967) children either gave themselves tokens for turning a wheel of were given tokens by the experimenter. The result was significantly better performance by those reinforced themselves.

a. true b. false

Which of the following statements is true about the average brain of individuals with schizophrenia when they are compared to the brains of persons who do not have the disorder?

a. There are no known anatomical differences. b. The overall size of the brain is actually larger than normal in people with schizophrenia. c. Dopamine activity is lower than normal in people with schizophrenia. d. The fluid-filled spaces at the core of the brain are larger in people with schizophrenia.