Can someone walk me through the steps to find \"the effect size for each of my f
ID: 3363521 • Letter: C
Question
Can someone walk me through the steps to find "the effect size for each of my factors and the interaction" within SPSS...it has to be SPSS.
Here is the work I did in SPSS so far:
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.
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)
Explanation / Answer
Answer-
Hypotheses used would be-
H0- Model is not significant ie. the amount of fat in the diet and amount of exercise do not affect the mental acuity of middle-aged women
Ha- Model is significant ie. the amount of fat in the diet and amount of exercise affect the mental acuity of middle-aged women
From the table, we see that p-value for the given test is 0.000 which is less than 0.05
Hence at 5% level of significance null hypothesis is rejected and we can clearly deduce that the amount of fat in the diet and amount of exercise affect the mental acuity of middle-aged women.
Answer
TY!
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