Question: A static-group comparison experiment involves only a single group of research participants, all of whom receive the same treatment. requires that the research participants remain

A static-group comparison experiment

  1. involves only a single group of research participants, all of whom receive the same treatment.
  2. requires that the research participants remain in the same location during the entire experiment, so as to avoid threats to the experiment's internal validity.
  3. involves a treatment and control group, but only the treatment group is given the posttest.
  4. involves a treatment and control group, but of which are given a posttest, but no pretest.

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