Sam's friends describe him as a sensation seeker, carefree, and very active. A psychologist interested in traits would summarize Sam's personality by using which of these terms?

The neurotransmitter that is implicated most strongly in schizophrenia is

(a) Prozac (b) dopamine (c) thorazine (d) schizomine (e) none of these

Which of the following statements is true of the research by McClelland and Atkinson regarding the need for achievement (n Ach)?

a) Individuals with a low need for achievement are fueled by hope of succeeding. b) Those with a high need for achievement set difficult goals. c) Those with a low need for achievement tend to set realistic goals for themselves. d) Individuals with a high need for achievement are fueled by fear of failure.