Essentials of Statistics for The Behavioral Sciences (MindTap Course List)
Essentials of Statistics for The Behavioral Sciences (MindTap Course List)
9th Edition
ISBN: 9781337098120
Author: Frederick J Gravetter, Larry B. Wallnau, Lori-Ann B. Forzano
Publisher: Cengage Learning
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Chapter 13, Problem 1P

What is the relationship between the F-ratio for a repeated-measures ANOVA and the F-ratio for an independent-measures ANOVA? Specifically, describe the role of individual difference in each.

Expert Solution & Answer
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To determine
Relationship between the F-ratio for a repeated-measure ANOVA and the F-ratio for an independent-measure ANOVA.

Answer to Problem 1P

Repeated-measures ANOVA use fewer participants than independent-measures and ANOVA. There exist individual differences in both numerator and denominator of F-ratio of independent measure ANOVA while in case of repeated-measures design individual differences get automatically eliminated from the numerator of F-ratio but individual differences need to be computed and eliminated from the denominator of F-ratio.

Explanation of Solution

Both the F-ratio for repeated-measures ANOVA and independent-measures ANOVA are used compare the mean differences for more than two treatments but in case of repeated-measures study, same participants are used for all treatments while in case of independent-measures ANOVA, participants in each treatment are different. So, repeated-measures ANOVA uses fewer participants than independent-measures ANOVA.

Also, in F-ratio of independent measure ANOVA, there exist individual differences between treatments and within treatments because participants in each treatment are not same while in case of repeated-measures design individual differences get automatically eliminated from the numerator of F-ratio but individual differences need to be computed and eliminated from the denominator of F-ratio.

Conclusion:

Repeated-measures ANOVA use fewer participants than independent-measures and ANOVA. There exist individual differences in both numerator and denominator of F-ratio of independent measure ANOVA while in case of repeated-measures design individual differences get automatically eliminated from the numerator of F-ratio but individual differences need to be computed and eliminated from the denominator of F-ratio.

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Chapter 13 Solutions

Essentials of Statistics for The Behavioral Sciences (MindTap Course List)

Ch. 13.4 - Prob. 3LCCh. 13.5 - Which of the following accurately describes the...Ch. 13.5 - In a two-factor analysis of variance, the F-ratio...Ch. 13.5 - The following table shows the results for a...Ch. 13 - What is the relationship between the F-ratio for a...Ch. 13 - A researcher conducts an experiment comparing four...Ch. 13 - A researcher conducts a repeated-measures...Ch. 13 - The following data were obtained from a...Ch. 13 - The following data represent the results of a...Ch. 13 - One of the advantages of a repeated-measures...Ch. 13 - The following summary table presents the results...Ch. 13 - The following summary table presents the results...Ch. 13 - A researcher use a repeated-measures ANOVA to...Ch. 13 - A published report of a repealed-measures research...Ch. 13 - The following data are from a repeated-measures...Ch. 13 - The following data are from a repeated-measures...Ch. 13 - In Problem 6 at the end of Chapter 11 (page 325),...Ch. 13 - Define each of the following terms: a. Factor b....Ch. 13 - Explain what happens during each of the two stages...Ch. 13 - For the data in the following matrix: a. Which two...Ch. 13 - The following matrix presents the results from an...Ch. 13 - The following matrix presents the results of a...Ch. 13 - A researcher conducts an independent-measures,...Ch. 13 - A researcher conducts an independent-measures,...Ch. 13 - The following results are from an...Ch. 13 - The following results are from an...Ch. 13 - Most sports injuries are immediate and obvious,...Ch. 13 - The following table summarizes the results from a...Ch. 13 - The following table summarizes the results from a...Ch. 13 - Earlier in this chapter we described a study by...
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