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The regression-discontinuity design is very susceptible to selection bias.
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Q1: The more a study is replicated in
Q4: The statement "If X then Y and
Q4: A double pretest design is particularly attractive
Q11: In terms of signal and noise,a Type
Q13: A line that describes the relationship between
Q24: What type of response scale is used
Q48: The written description of the data that
Q49: The general statistical analysis that enables us
Q52: As long as your test is reliable,it
Q58: A response scale like agree/disagree or support/oppose