Professor Parsons is designing an experiment that includes complete counterbalancing. She wants to determine all possible sequences for her four treatment conditions, so she calculates the number using her knowledge of factorials

Which of the following is true of research on insight?

a) Researchers have found that only human beings are capable of insight learning. b) Researchers have found support for the existence of both human and animal insight learning. c) Researchers have found that apes are capable of insight only after being taught this by humans. d) Researchers have proven that all creatures, even one-celled organisms such as the amoeba, are capable of insight learning.

Electroconvulsive therapy ______

a. is most effective if administered several times a week for several weeks b. often results in memory impairments c. is more effective in treating schizophrenic disorders than mood disorders d. has no side effects