PET scans involve the injection of a radioactive isotope into the bloodstream

Zucker, Ostrove, and Stewart (2002) surveyed a group of young adult women with an average age of 26, a different group of middle-aged women who had an average age of 46, and a third group of older women who had an average age of 66years old

After comparing the data from the three groups, the researchers found that feelings of generativity were stronger in midlife than in young adulthood, and that those feelings tended to plateau in late adulthood. This research design is known as _______________. a) longitudinal design b) 2x2 design c) cross-sectional design d) experimental design

The broad label that describes the use of different methods to arrive at diagnoses and

conclusions about personality and cognitive function is______. a. classification c. psychodiagnostic testing b. mental status evaluation d. assessment