By age 80 years, most people have lost what percentage of their peak brain mass?
a. 1 to 4%
b. 5 to 10%
c. 11 to 15%
d. 16 to 20%
Answer: B
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Katarina is on a plane that has been hijacked. Assuming she will be in this situation for an extended period of time, which coping strategy to alleviate her stress would probably be least effective?
a. distracting herself b. helping other passengers c. deep breathing exercises d. muscle relaxation
A chi-square test for independence is being used to evaluate the relationship between two variables. If the test has df = 2, what can you conclude about the two variables?
a. One variable consists of 2 categories and the other consists of 3 categories. b. One variable consists of 2 categories and the other consists of 4 categories. c. Both variables consist of 2 categories. d. Both variables consist of 3 categories.
Which theory of aggression is illustrated by the fact that children who are physically abused at home, those who suffer severe physical punishment, and those who merely witness violence in the community are more likely to be involved in fighting, aggressive play, and antisocial behavior at school?
a. psychoanalytical theory b. instinctual theory c. social learning theory d. humanistic theory.
In comparison to naturalistic observation, the downside to using the experiment method is that:
a. unknown information is excluded from being measured. b. it is unable to test cause and effect relationships. c. it is unable to control independent variables. d. it is unable to produce changes in participants' behavior.