Two-Way ANOVA Homework

 

A researcher is interested in determining whether a new drug and a new behavior modification program will affect an inmate’s criminal behavior. Sixty three (63) inmates are randomly selected for inclusion in this research project. The inmates are divided into 9 groups of 7. The group assignments are as follows:

  Drug (20mg) Drug (10mg) Placebo
No behavior modification

12

10

19

19

15

18

22

18

16

27

23

26

22

22

21

22

33

35

27

34

32
Behavior modification every other day

28

15

20

12

14

14

17

30

15

20

14

15

20

19

38

20

23

20

14

21

21
Behavior modification every day

3

10

11

8

11

5

13

7

14

11

12

17

10

15

13

18

12

13

19

9

17

 

After 4 weeks, inmates are tested on a criminal personality examination. The scores range from a low of 1 (low criminal personality) to 40 (high criminal personality). Analyze the results of this analysis.

Open the data file homeworkinmates

Conduct the ANOVA on the data and answer the following questions:

Is this a one way or two way ANOVA?

What are the hypotheses for this problem?

What are the statistical results?

Interpret the printouts.

Was Post Hoc conducted?  Why or why not?