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    Non-parametric methods

    Thanks for coming back to me on this Karabiner. I have three groups of males (n1 = 89, n2 = 295 and n3 = 66). The dependent variable (DV) is body mass (kg) and the covariate (CV) is age (yrs). I wanted to use ANCOVA to test the H0: M1 = M2 = M3 on the group masses holding the covariate stable...
  2. C

    Non-parametric methods

    Hi everyone. This is my first time on this forum … thank you for accepting me! I have run a Quade's rank analysis of covariance (Quade, 1967) using SPSS. The reason I did not use a straight ANCOVA was because three of the five assumptions underpinning parametric ANCOVA were not confirmed in...