Question: The following data represent the results from an independent-measures study comparing three treatments.

1. Compute SS for the set of 3 treatment means. (Use the three means as a set of n = 3 scores and compute SS .)
2. Using the result from part a, compute n ( SS means). Note that this value is equal to SS between (see Equation 13.6).
3. Now, compute SS between with the computational formula using the T values (Equation 13.7). You should obtain the same result as in part b.

Treatment

I II III

n = 10 n = 10 n = 10

M = 2 M = 3 M = 7

T = 20 T = 30 T = 70

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