The most common method of selecting a pool or sample of subjects in experiments is simple random sampling.
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Q47: When possible, matching should be substituted for
Q48: Tests of statistical significance indicate whether differences
Q49: An experiment's internal validity depends upon how
Q50: "External validity" refers to the generalizability of
Q51: Laboratory experiments usually are high in external
Q53: Most experiments are conducted with college students
Q54: The use of college student volunteers limits
Q55: Replication is often used to increase the
Q56: Pretesting in an experiment may take the
Q57: A manipulation check determines whether the independent
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