Hi all,
One-way ANOVA showed that the five group means (G1=3.53, G2=3.79, G3= 3.82, G4=4.02, and G5=4.22) are significantly different (F=4.286, p<0.05). The multiple comparison via Scheffe test revealed as follows:
* G1 and G4 are significantly different (p=0.024)
* G1 and G5 are significantly different (p=0.016).
* The other pairs are nonsignificant (p>..05)
While the Scheffe homogeneous subset for alpha=0.05 revealed as follows:
* G1,G2, G3 and G4 are homogeneous groups (fall on subset 1with
p-value of .117)
* G2,G3, G4, and G5 are also homogeneous (fall on subset 2 with
p-value of .231).
I am puzzled with the results of multiple comparison and homogeneous subsets. Why are the results of the two different?
Thank you.
Eins
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