Question
The best method for establishing the external validity of research findings is: adding a nonequivalent control group to the study design. pretesting participants before the
The best method for establishing the external validity of research findings is:
adding a nonequivalent control group to the study design.
pretesting participants before the intervention.
randomly assigning participants to conditions.
replicating the findings under different conditions.
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Abstract Algebra
Authors: John A Beachy, William D Blair
3rd Edition
1478615915, 9781478615910
