It is WRONG to attribute nonshared environmental influences (NSE) to siblings' unique genes because
a. living in the same home is a shared experience.
b. no one knows what strange genotypes identify aliens.
c. monozygous twins still show NSE effects.
d. parents and children have distinctive genotypes.
C
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The dependent variable is the one that is
a. manipulated. b. prevented from affecting the outcome of the experiment. c. revealed by measures of performance. d. the suspected cause in the experiment.
If it is revealed that a new drug is correlated with cancer, it means that the drug:
a. causes cancer. b. probably causes cancer. c. may cause cancer. d. does not cause cancer.
A researcher who selects a sample of people of varying ages and studies them at one point in time is, by definition, using the __________ method
a. longitudinal b. correlational c. cross-sectional d. biographical study
Negative reinforcement is best thought of as:
a. reinforcement for an undesirable activity. b. punishment. c. something that was predicted to serve as reinforcement but did not do so. d. stimuli whose termination or removal increases behavior.