For a hypothesis test using a t statistic, the boundaries for the critical region will change if the sample size is changed

The government asks researchers to review research on the influence of violent games on aggressive thoughts and behavior. Which of these is the best summary of what they will find?

a) To date, the effect has been so limited that it is likely to be of no concern to the general public. b) Both correlational and experimental research point to the conclusion that exposure to violent games increases aggression. c) Although such an effect has been shown repeatedly in correlational research, it has yet to be demonstrated in experimental work. d) Occasional examples of violent teenagers and adults who play violent games have led the public to the false impression that there is a cause and effect relation.

The devastating effects of learned helplessness point out the importance of which of the following in defending against psychological problems?

a. hope b. trust c. sublimation d. primary appraisals