Increasing the size of the sample in an experiment will _____ the value of _____
a. increase; the standard error of the difference between means
b. decrease; the standard error of the difference between means
c. increase; alpha
d. decrease; alpha
B
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Feeling good can lead to increased helping behavior because
a. people want to maintain their good mood. b. people in a good mood have a higher level of mental arousal. c. people in a good mood are more likely to avoid pluralistic ignorance and notice an individual in need of help. d. there is a positive correlation between good mood and an altruistic personality.
Minor tranquilizer and benzodiazepines are used as
a. antidepressants. b. antisomatic drugs. c. antipsychotics. d. tricyclics. e. antianxiety drugs.
An individual with Type A coronary-prone are found to be at a higher level of risk for:
a. coronary heart disease. c. muscular-skeletal injuries b. diabetes. d. renal failure.
After a large local charity is rocked by a spending scandal, Marc wants to know how benefactors feel about the charity and what changes they would like to see made in the future. Marc randomly selects 100 individuals from the list of 1500 by using a random number generator. Marc's sample is best described as a ____ sample
a. simple random b. stratified random c. systematic random d. cluster random