Mortality is a problem in research because _____
a. when subjects drop out, we don't know exactly how the results are affected
b. without random assignment, the experimenter can't control who is in which group
c. it means the comparison group was never equivalent to the treatment group
d. when subjects die, the researcher could be named in a lawsuit
A
Usually subjects drop out of one group more than another. The true effect of the treatment is thereby obscured.
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Dr. Feldman is studying sibling rivalry. Each of his participants has been assessed every five years since 1970 . Dr. Feldman's overall research design is best classified as a. cross-sectional. b. experimental
c. longitudinal. d. sequential.
Depolarization of a neuron causes:
a. the likelihood of an action potential to decrease b. the likelihood of an action potential to increase c. the axon hillock to become inactivated d. a change in the intensity of the action potential
Which one of the following terms comes closest to meaning the same thing as phenomenological reality?
a. physical reality b. external reality c. subjective reality d. cultural reality
What most contributes to the “self-correcting” nature of science, through which errors and misinterpretations of the past are found and corrected?
a. replication c. observation b. correlation d. hypotheses