The hallmark feature of an experimental design is:
A) manipulation of one or more variables to determine the effect on another measured variable
B) random assignment is used to control extraneous influences
C) a control group which receives none of the manipulation is often included
D) all of the above
Correct Answer:
Verified
Q21: Correlational designs:
A) use random assignment
B) manipulate one
Q22: In a "true" experimental design:
A) previous studies
Q23: A moderator variable is one which:
A) is
Q24: In selecting a sample, a researcher must
Q25: All of the following describe threats to
Q27: Structural equation modeling (SEM):
A) Uses mediation analysis
Q28: All of the following describe threats to
Q29: One strength of structural equation modeling (SEM)
Q30: Being able to justify interpretations of research
Q31: Probability sampling:
A) focuses on using techniques to
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