In general,social scientists get their best results by comparing very different groups to each other.
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Q21: Researchers use deception in all their experiments
Q22: A random assignment means that an instructor
Q23: What is the difference between an experimental
Q24: A placebo is an independent variable,typically an
Q25: Natural experiments are field experiments
A)that are always
Q27: Hawthorne Effect is
A)common in field experiments.
B)awareness of
Q28: Design notation is a technique used exclusively
Q30: When a researcher says that her experiment
Q31: A researcher should never measure the dependent
Q101: What is the difference between random sampling
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