The result of a one-way ANOVA for total stress symptoms among four groups of teachers (pre-k, elementary, middle, high school) was F(3, 117) = 3.827, p < .05. The corresponding effect size,η2 = .26. What can be concluded about these results?
- For total stress symptoms, there was not significant difference among groups, F(3, 117) = 3.827, p < .05.
- For total stress symptoms, there was a significant difference among groups, F(3, 117) = 3.827, p < .05. The effect size was small.
- For total stress symptoms, there was a significant difference among groups, F(3, 117) = 3.827, p < .05. The effect size was medium.
- For total stress symptoms, there was a significant difference among groups, F(3, 117) = 3.827, p < .05. The effect size was very large.