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The following data were obtained from an independent-measures study comparing three treatment conditions.
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Treatment |
|
|
|
|
I |
II |
III |
|
|
|
4 |
3 |
8 |
N = 12 |
|
|
3 |
1 |
4 |
G = 48 |
|
|
5 |
3 |
6 |
ΣX2 = 238 |
|
|
4 |
1 |
6 |
|
|
|
M = 4 |
M = 2 |
M = 6 |
|
|
|
T = 16 |
T = 8 |
T = 24 |
|
|
|
SS =2 |
SS = 4 |
SS = 8 |
|
|
A)
Use an ANOVA with alpha = .05 to determine whether there are any significant differences among the three treatment means. Follow the four-step procedure of hypothesis testing.
B)
Calculate the eta squared to measure the effect size.
C)
Report your results of one-way ANOVA analysis and the effect size in APA format.
D)
conduct a post hoc analysis with Tukey’s HSD
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