The purpose of having random assignment in an experiment is to:
a. prevent subjects from knowing of which experimental group they are a member.
b. provide ethical reasons for being in an experiment .
c. make sure that no pre-existing differences among groups caused the change in the experimental group's behavior.
d. cause a selection factor to determine how the subjects will behave in the experiment.
C
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The need associated with the second level of Maslow's hierarchy of needs is:
respect of the community. feeling protected from injury and death. love and belonging. self-actualization.
What is the principle of informed consent about?
a. debrief participants after the study as to what it was about b. telling participants before a study as fully as possible about what will happen to them during the study c. assuring participants that their responses will be confidential d. informing participants in research that their consent will be obtained e. the participant consents to being informed