The file “false memory data, 4 groups.sav” (or, .xls, or “false2.txt”), available on the Web site (www.tzkeith.com), includes the false memory simulated data analyzed in this chapter, plus data from a fourth group, men who were neither abused nor suffered from PTSD (the four groups from Bremner et al., 2000). For comparison purposes, analyze the data via ANOVA, with follow-up via Fisher’s LSD test, the Dunn–Bonferroni procedure, and Dunnett’s test (with men as the control group).

a. Convert the group variable into g – 1, or three, dummy variables and analyze the data with MR. Use the table of coefficients to conduct the three post hoc procedures.

Compare the results with the ANOVA.

b. Convert the group variable into three effect coded variables and analyze the data with MR. Compare the results with the ANOVA and with the dummy coded solution.

c. Convert the group variable into a single criterion scaled variable and conduct the MR using it. Correct the ANOVA table from the MR for the proper degrees of freedom and compare the results with the other analyses of the same data.