The effect that can occur when external events during the experiment change the subjects' outcome scores is known as a(n) ______.
A) Hawthrone effect
B) history effect
C) selection bias
D) generalized impact
Correct Answer:
Verified
Q11: _ is what makes the comparison group
Q12: The technique of _ allows researchers to
Q13: A _ is given to a control
Q14: _ occurs when participants can select the
Q15: _ occurs when groups become different after
Q17: A quasi-experimental design consisting of several pretest
Q18: Despite their obvious strengths, _ are rarely
Q19: Correlation proves causation.
Q20: Identifying causes and figuring out why things
Q21: Experimental designs do not consider causal validity
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