The _________ perspective in psychology focuses on the roles of ethnicity, gender, culture, and socioeconomic status in behavior and mental processes

Some cross-cultural studies report __________ sex differences in countries with more gender equality

a. higher b. huge c. about the same d. nonexistent

All of the following are examples of behaviors that may contribute to sleep problems EXCEPT a. smoking a cigarette before going to bed

b. getting out of bed if you are unable to fall asleep after a reasonable period. c. vigorous exercise an hour before bedtime. d. keeping the bedroom cold.