It is a rare, genetically transmitted disorder that involves twitching movements, dementia, and death. Its symptoms begin to appear in childhood to late in life, and onset most typically occurs during midlife. What is it?

More than one-third of adults over age 85 live in nursing homes

Indicate whether the statement is true or false.

Peer groups are most likely to exert influence

a. when the appropriate behavior is clear and well-defined. b. in subjective areas such as preferences in music and clothing. c. on clearly antisocial behaviors such as stealing. d. in unambiguous situations.