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What is the main threat to internal validity in a Post-test Only Nonequivalent Groups Design? What is the main threat to internal validity in a
What is the main threat to internal validity in a Post-test Only Nonequivalent Groups Design? What is the main threat to internal validity in a Post-test Only Nonequivalent Groups Design? Placebo effects Confounding variables due to lack of random assignment Demand characteristics Experimenter expectancy effects
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Prealgebra
Authors: Elayn Martin Gay
7th edition
321955048, 978-0321955043
