Identify and explain the three requirements needed to make a causal inference from an experiment?
What will be an ideal response?
Students should identify and explain:
1) Causal Inference - to make a causal inference form an experiment, we must meet the same requirements that are needed for any causal relationship:
(i) Cause must precede effect
(ii) There must be an association between cause and effect
(iii) The researcher must eliminate plausible alternatives.
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