11.9

One way Analysis of Variance ( ANOVA )

Computational Table

Model	Film	Desensitization	Control
29	22	21	13
27	18	17	12
27	17	16	9
21	15	14	6
= 104	= 72	= 68	= 40

Statistical Analysis:

Independent Variable based on the question is the four treatments that has levels such as Model , Film , Desensitization , and Control.

Dependent Variable on the other hand is the phobias.

Answer

SStreatment=nAi(xAi)2N(xi)2

SS _treatment = ( 104² / 4 ) + ( 72² / 4 ) + ( 68² / 4 ) + ( 40² / 4 ) - [ ( 29 + 22 + 21 + 13 + 27 + . . . . + 6 )² / 16

SS _treatment = 5556 - 5041

SS _treatment = 515 Answer

SStotal=xi2N(xi)2

SS _total = ( 29² + 22² + 21² + 13² + 27² + . . . . + 6² ) - [ ( 29 + 22 + 21 + 13 + 27 + . . . . + 6 )² / 16

SS _total = 5674 - 5041

SS _total = 633 Answer

SS _error = SS _total - SS _treatment

SS _error = 633 - 515

SS _error = 118 Answer

*11.13. Perform an F test on the data from Bandura and colleagues' phobia treatment study (Problem 11.9). Write a conclusion. *11.17. For the data on treatment of phobias (Problems 11.9 and 11.13), compare the best treatment with the second best, and the poorest treatment with the control group. Write a conclusion about the study. 11.20. For the data from Bandura and colleagues\" phobia treatment experiment (Problems 11.9, 11.13, and 11.17), nd f and write a sentence of interpretation. r 11.23. Common sense says that a valuable goal is worth suffering for. Is that the way it works? In a classic experiment in social psychology (Aronson & Mills, 1959), college women had to \"qualify\" to be in an experiment. The qualication activity caused severe embarrassment, mild embarrassment, or no embarrassment. After qualifying, the women listened to a recorded discussion, which was, according to the experimenters, \"one of the most worthless and uninteresting discussions imaginable." The dependent variable was the women's rating of the discussion. Analyze the ratings using the techniques in this chapter (high scores : favorable ratings). Write an interpretation. Degree of embarrassment Severe Mild None 18 18 1? 23 12 15 14 14 9 20 15 12 25 1D 13