Infant mortality rates in the United States vary across ethnic groups. The greatest infant
mortality rates exist in
a. African Americans and Asian Americans.
b. African Americans and Caucasians.
c. African Americans and Native Americans.
d. African Americans and Hispanic Americans.
c. African Americans and Native Americans.
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What did Freud mean by regression?
a. Trying to argue that your actions are justified b. Return to a more immature level of behavior c. Moving an unacceptable thought into the unconscious d. Diverting a behavior toward a less threatening target
Psychologists use shaping because of which limitation of operant conditioning?
A. Punishment does not teach new responses, it only inhibits old ones. B. Behaviors will extinguish if they are not reinforced occasionally. C. One must wait for the organism's response before it can be rewarded or punished. D. Operant procedures condition responses only to very specific stimuli.
Answer the following statements true (T) or false (F)
1 It is common to assign experimental participants to groups by random assignment 2 Random assignment of participants to groups generally is an effective way of eliminating the third-variable problem 3 Third variables are not adequately controlled when random assignment fails to create equivalent groups 4 When the odds are high that random assignment failed to create equivalent groups, the results are said to be statistically significant 5 An internally valid experiment means that accurate conclusions can be drawn about the causal relationship between an independent variable and a dependent variable
In order to find new ways to open a can, a group leader asks his team of inventors to think of "opening" in general rather than asking them to come up with a better way to open a can. In doing so, this group leader will
a. encourage creativity since he broadly defined the problem. b. discourage creativity because he defined the problem too broadly. c. encourage the use of mental sets, thus, encouraging creativity. d. prevent incubation of the problem, thus, discouraging creativity.