Shortly after she lay down to go to sleep, Ellen was starting to drift off to a peaceful slumber. Out of nowhere, she experienced a sudden muscular spasm that pulled her right back to wakefulness
The technical name of this muscular contraction is a __________.
a. hypnagogic jerk
b. REM clench
c. sleep spindle
d. beta block
Answer: A
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What is an experimental design for assessing age-related changes in which data are obtained simultaneously from people of differing ages?
a. longitudinal study b. mixed longitudinal study c. cross-sectional study d. correlational study
During adolescence, the physical activity levels of males continue to increase, while those of females tend to level off, or even decline. This is most likely due to the
a. degeneration of muscle tissue in females. b. traditional gender-role socialization of females in our culture that discourages physical activity (especially in athletics). c. hormonal changes across the period of adolescence. d. secular trend.
Harry, a hard-working executive in a major corporation, is under a tremendous amount of stress. All of the following are effective ways for him to cope with the stress of his job except ____
a. ?having five drinks after work b. ?jogging after work c. ?progressive muscle relaxation d. ?meditating for ten minutes a day
The degree to which the conclusions in a study would hold for other persons in other places and at other times is referred to as _______________
Fill in the blank(s) with correct word