Which of the following psychological approaches has been found to be as effective as drug therapy for treating many cases of depression?

When it comes to evaluating high-tech toys,

a. large-scale independent research has yielded supportive evidence for the manufacturers' claims of educational benefits b. insufficient objective research has been conducted c. it doesn't matter if the manufacturers' claims are substantiated, as long as children have fun with the toys d. the cost of the toys is a relatively unimportant consideration

Libby's physician refers her to a medical

center in order to have the biochemical activity in her brain analyzed. She is given an injection of a radioactive glucose-like substance and then is told to lie down with her head in a scanner. The technique being used is ________. a) positron emission tomography b) functional magnetic resonance imaging c) microelectrode recording d) an electroencephalogram