Mathematics, 24.08.2020 21:01 rehooreh14

Which two of the following are not characteristics of surveys? 4. Two or more treatments are compared in the study.
B. Data are gathered during the course of the study.
C. One or more treatment groups and a control group are included in
the study.
D. The results of the study are analyzed statistically.

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Which two of the following are not characteristics of surveys? 4. Two or more treatments are compar...