AP Psychologymediummcq1 pt
What makes an experiment able to establish causation?
A.Random assignment to conditions
B.A large sample size
C.Naturalistic observation
D.Survey research
Explanation
Core Concept
Random assignment equalizes pre-existing differences between groups, so any later difference can be attributed to the manipulated variable — the basis of causal inference.
Correct Answer
ARandom assignment to conditions
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