Comparative Pretest-Posttest Experiment
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A Comparative Pretest-Posttest Experiment is a comparative experiment that is a pretest-posttest experiment.
- Context:
- It can range from being a Comparative Random Pretest-Posttest Experiment to being a Comparative Nonrandom Pretest-Posttest Experiment.
- It can range from being a 2-Group Pretest-Posttest Experiment to being a Multi-Group Pretest-Posttest Experiment.
- See: Posttest-Only Comparative Experiment.
References
2006
- (Henning & Henning, 2006) ⇒ Gavin Henning, and Terri Henning. (2006). “Experimental Designs."
- 2 Group, Post-test Comparison: Minimal Control. There is somewhat more structure, there is a single selected group under observation, with a careful measurement being done before applying the experimental treatment and then measuring after. This design has minimal internal validity, controlling only for selection of subject and experimental mortality. It has no external validity.