One-way ANOVA Assignment 13: Ch 13 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 the level of aggression. She has identified 5 girls who fall into each of 4 interaction level and has measured their aggression scores. Her data are given below. Complete table below by filling in boxes with correct value. Show calculation. No Low Moderate High interaction interaction interaction interaction A1 A, Az A2 A3 A3 A4 4 16 16 16 5 25 36 16 16 6 36 25 9 16 6 36 16 25 25 25 4 16 [ A1=26 EA, =138 2 A, [ A,'=118 [ A,=20 [ A, =82 2 A.=17 EAtot= j; EA to1 397; n1=[_; n2=5; n;=5; n.=5; N=[_]; X 1= [ ]; X2=4.80; X;=4.00; X 4=3.40 1. Identify the independent and dependent variable. 2. Should Katie conduct a between-subjects ANOVA or a 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 H. and H, ? 6. If you use a= .05, what is the appropriate Forit? 7. Complete the ANOVA summary table (next page). ANOVA Summary Table Source Sum of Squares df Mean Square F Between groups Within groups 8.80 Total 18.55 8. Your conclusion? 9. Perform Post Hoc Comparison. or HSD = (9.), 10. Your conclusion