As an alternative method of evaluating a group home, suppose we take 12 adolescents who have been declared delinquent. We take the number of days truant during each of three time periods: (1) the month before they are placed in the home, (2) the month they live in the home, and (3) the month after they leave the home. The data are as follows:

I frequently ask you to use SPSS or R to solve a problem. You should have no problem with SPSS if you stick with the “Legacy” analyses. You should be able to use R by modifying the code that I give on the Web page for this chapter: http://www.uvm .edu/~dhowell/fundamentals9/Supplements/Chapter20R.html

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Adolescent Before During After I 10 5 8 2 12 8 7 34 12 13 10 19 10 12 599 5 10 8 6 13 8 7 7 20 16 12 8 8 4 5 9 12 14 9 10 10 3 5 || 8 3 3 12 18 16 2 Use SPSS or R to run Friedman's test on these data.