Multiple Choice
Terence, one of the participants in the control group told Grace that his group found out that 'the other kids were getting a program to help their math scores' and therefore they decided to get together in a study group once a week to help each other. Grace was very concerned. What threat does this student action represent?
A) John Henry Effect
B) Multiple treatment interference
C) Experimenter effects
D) Treatment diffusion
Correct Answer:
Verified
Correct Answer:
Verified
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