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# Can someone walk me through the steps to find quot;the effect size for each of my factors and the interaction, and to explain the resultsquot;...

**Can someone walk me through the steps to find "the effect size for each of my factors and the interaction, and to explain the results" within SPSS...it has to be SPSS.**

**Here is the work I did in SPSS so far: It is for a two-way ANOVA**

**Tests of Between-Subjects Effects**

Dependent Variable: Acuity Results

Source Type III Sum of Squares df Mean Square F. Sig.

Corrected Model 114.800a 5 22.960 34.440 .000

Intercept 529.200 1 529.200 793.800 .000

Diet 6.200 2 3.100 4.650 .020

Exercise 90.133 1 90.133 135.200 .000

Diet * Exercise 18.467 2 9.233 13.850 .000

Error 16.000 24 .667

Total 660.000 30

Corrected Total 130.800 29

a. R Squared = .878 (Adjusted R Squared = .852)

Below was the question I had to answer, regarding my SPSS work above.

A researcher is interested in studying the effect that the amount of fat in the diet and amount of exercise has on the mental acuity of middle-aged women. The researcher used three different treatment levels for the diet and two levels for the exercise. The results of the acuity test for the subjects in the different treatment levels are shown below.