Question: A researcher used a one-factor ANOVA for between-groups to test the effectiveness of four teaching methods for autistic children. The experiment was conducted with four

A researcher used a one-factor ANOVA for between-groups to test the effectiveness of four teaching methods for autistic children. The experiment was conducted with four samples of n = 12 autistic children in each group.

The results of the analysis are shown in the following summary table:

Source SS df MS
Between Treatments (F=5.00) ? ? ?
Within Treatments 88 ? ?
Total ? ?

A. Fill in all missing values in the table. Show your work (i.e., all computational steps for finding the missing values). Hint: start with the df values.

B. Do these data indicate any significant differences among the four teaching methods (assume p < .05)?

Your answer should include:

- the null hypothesis H0 & the alternative hypothesis H1

- the critical F value used for the decision about H0

- if the difference is statistically significant, compute the effect size, ?2

- the conclusion in APA style format.

*NOTE: This is a Psychology Statistics question

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