A circadian rhythm is
a. a cycle of lunar phases.
b. an old method of birth control.
c. a cycle connected to the 24-hour period of earth's rotation.
d. a cycle of wakefulness based on meteorological conditions.
C
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Which term refers to parents' feelings of unhappiness, worry, loneliness, and depression resulting from their children's departure from home?
A. midlife crisis B. child abandonment C. empty nest syndrome D. parental reinvestment
Severe social awkwardness, thought disturbance, and a desire to be left alone are seen in many people with
a. depression and antisocial personality. b. less severe autism (previously known as Asperger's disorder). c. low functioning autism and attention deficit hyperactivity disorder. d. none of these have these symptoms.
Research techniques based on the naturally occurring relationship between two or more variables are known as the ______ method
a. case study b. naturalistic observation c. correlational d. experimental
Which of the following would most likely be tested using a visual cliff?
a. size constancy b. figure-ground perception c. depth perception d. shape constancy