assignment

ANOVA Interpretation Set 3

Study this scenario and ANOVA table, then answer the questions in the assignment instructions.

A researcher conducted an experiment to determine if a new drug for depression was more

effective than not taking any medication. The treatment group received the new medication

and the control group received a placebo. Depression was measured before and after the

treatment period, and an ANOVA compared the difference scores between and within groups.

Here is the ANOVA table with the results:

Source SS df MS F p

Between 1,202.313 1 1,202.313 15.895 <.001

Within 2,118.000 28 75.643

Total 3,320.313 29