In a study, subjects are randomly assigned to one of three groups: con – McqOptions

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1.	In a study, subjects are randomly assigned to one of three groups: control, experimental A, or experimental B. After treatment, the mean scores for the three groups are compared. The appropriate statistical test for comparing these means is:
A.	the correlation coefficient
B.	chi square
C.	the t-test
D.	the analysis of variance
Answer» E.

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