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  1. M

    ANOVA contrast coding for 4 groups.

    Hello, I have four groups 1, 2, 3, and 4, and I'm trying to compare the average of 1 and 2 vs. group 3 and group 4 (note not the average of group 3 and 4). Can someone help me with what my contrast coefficients should be? Thanks in advance!
  2. M

    Paired T-test effect size

    Can someone please direct me to a calculation for an effect size for a paired samples t-test along with a reference? Thanks in advance.
  3. M

    Intervention vs. Control Group for Matched Pair, dichotomous data: McNemar Test?

    I have matched-pair, pass/fail data on a reading test for 2010 and 2012. I have this for an intervention group and a control group of students. I'm trying to show that my intervention group did better than control group. I've calculated two McNemar statistics for both the intervention (sig.)...