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Statistics for the Behavioral Sciences by Frederick J. Gravetter, Larry B. Wallnau ISBN 10: 1305504917 ISBN 13: 9781305504912

Statistics is one of the most practical and essential courses that you will take, and a primary goal of this popular text is to make the task of learning statistics as simple as possible. Straightforward instruction, built-in learning aids, and real-world examples have made STATISTICS FOR THE BEHAVIORAL SCIENCES, 10th Edition the text selected most often by instructors for their students in the behavioral and social sciences. The authors provide a conceptual context that makes it easier to learn formulas and procedures, explaining why procedures were developed and when they should be used. This text will also instill the basic principles of objectivity and logic that are essential for science and valuable in everyday life, making it a useful reference long after you complete the course.

Statistics is one of the most practical and essential courses that you will take, and a primary goal of this popular text is to make the task of learning statistics as simple as possible. Straightforward instruction, built-in learning aids, and real-world examples have made STATISTICS FOR THE BEHAVIORAL SCIENCES, 10th Edition the text selected most often by instructors for their students in the behavioral and social sciences. The authors provide a conceptual context that makes it easier to learn formulas and procedures, explaining why procedures were developed and when they should be used. This text will also instill the basic principles of objectivity and logic that are essential for science and valuable in everyday life, making it a useful reference long after you complete the course.

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446 CHAPTER 13 | Repeated-Measures Analysis of Variance

27. For either independent-measures or repeated-measures

designs comparing two treatments, the mean difference

can be evaluated with either a t test or an

ANOVA. The two tests are related by the equation

F = t 2 . For the following data,

a. Use a repeated-measures t test with α = .05 to

determine whether the mean difference between

treatments is statistically significant.

b. Use a repeated-measures ANOVA with α = .05 to

determine whether the mean difference between

treatments is statistically significant. (You should

find that F = t 2 .)

Person Treatment 1 Treatment 2 Difference

A 4 7 3

B 2 11 9

C 3 6 3

D 7 10 3

M = 4 M = 8.5 M D

= 4.5

T = 16 T = 34

SS = 14 SS = 17 SS = 27

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