What are independent variable and dependent variables

Reference no: EM1318466

Perform a single factor ANOVA.

ANOVA Study: Aggression

Katie is studying aggression among adolescent girls. She believes that there is a relationship between the level of interaction a girl has with her mother and her level of aggression. She has identified 5 girls who fall into each of 4 interaction levels and has measured their aggression scores. Her data are given below.

No Interaction	Low Interaction	Moderate Interaction	High Interaction
4	4	4	3
5	6	4	4
6	5	3	4
6	4	5	3
5	5	4	3

The summary table is as follows:

Source	Sum of Squares	df	Mean Square	F
Between groups	9.75	3	3.250	5.91
Within groups	8.80	16	0.550
Total	18.55	19

1. What are independent variable and dependent variables?

2. Should Katie conduct between-subjects ANOVA or within-subjects ANOVA? Explain your answer.

3. How many factors are involved in Katie's study?

4. How many levels are involved? Name the level(s).

5. What are the null and alternate hypotheses?

6. Using α = 0.05, what is F_crit?

7. is the F-test significant?

8. Based on your answer about significance, what else should you do and why?

Reference no: EM1318466

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