Essentials of Statistics for the Behavioral Sciences
8th Edition
ISBN: 9781133956570
Author: Frederick J Gravetter, Larry B. Wallnau
Publisher: Cengage Learning
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Chapter 13.3, Problem 1LC
a.
To determine
To find: Which means are compared to evaluate the main effect for factor A.
b.
To determine
To find: Which means are compared to evaluate the main effect for factor B.
c.
To determine
To find: Is there an interaction between the two factor.
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The following matrix presents the results from an independent-measures, two-factor study with a sample of n = 10 participants in each treatment condition. Note that one treatment mean is missing.
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A)
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The following matrix presents the results of a two- factor study with n = 10 scores in each of the six treatment conditions. Note that one of the treatment means is missing
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What value for the missing mean would result in no main effect for factor A?
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1. For the data in the following matrix:       No Treatment    Treatment Male   M=8          M=14      Overall M=11Female  M=4          M=10      Overall M=7    Overall M=6   Overall M=12
a. Which two means are compared to describe the treatment main effect?
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b. Which two means are compared to describe the gender main effect?
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c. Is there an interaction between gender and treatment? Explain your answer.
Chapter 13 Solutions
Essentials of Statistics for the Behavioral Sciences
Ch. 13.2 - The F-ratio for the repeated-measures ANOVA is...Ch. 13.2 - A repeated-measures study is used to evaluate the...Ch. 13.2 - Prob. 2LCACh. 13.2 - Prob. 3LCACh. 13.2 - Prob. 1LCBCh. 13.2 - Prob. 2LCBCh. 13.3 - Prob. 1LCCh. 13.3 - It is impossible to have an interaction unless you...Ch. 13.3 - Prob. 1LCACh. 13.3 - Prob. 2LCA
Ch. 13.3 - Prob. 3LCACh. 13 - How does the denominator of the F-ratio (the error...Ch. 13 - The repeated-measures ANOVA can be viewed as a...Ch. 13 - A researcher conducts an experiment comparing...Ch. 13 - Prob. 4PCh. 13 - A researcher uses a repeated-measures ANOVA to...Ch. 13 - A published report of a repeated-measures research...Ch. 13 - A recent study examined how applicants with a...Ch. 13 - One of the primary advantages of a...Ch. 13 - The following data are from an experiment...Ch. 13 - A researcher is evaluating customer satisfaction...Ch. 13 - The following summary table presents the results...Ch. 13 - A recent study indicates that simply giving...Ch. 13 - Prob. 14PCh. 13 - The endorphins released by the brain act as...Ch. 13 - Prob. 16PCh. 13 - Explain what happens during each of the two stages...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 - Prob. 21PCh. 13 - Prob. 22PCh. 13 - Example 13.1 in this chapter described a...Ch. 13 - The following table summarizes the results from a...Ch. 13 - The following data are from a two-factor study...Ch. 13 - Research indicates that paying students to improve...Ch. 13 - A researcher examining the jet lag that people...Ch. 13 - Prob. 2RECh. 13 - Briefly describe what is meant by an interaction...Ch. 13 - Most sports injuries are immediate and obvious,...
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- For the data in the following matrix  No treatment Treatment  Female 8 14 11 Male 4 10 7  6 12  A) Which two means are compared to describe the treatment main effect? B) Which two means are compared to describe the gender main effect? C) Is there an interaction between gender and treatment? Explain your answer.arrow_forwardFor the data in the following matrix:  No Treatment Treatment                Male    8 3 Overall M = 5.5 Female 4 4 Overall M = 4  Overall M = 6 Overall M = 3.5  Which two means are compared to determine whether there is a main effect of treatment? Is there a treatment by gender interaction? Do the effects of treatment on the scores depend on the levels of gender( do the effects of treatment on the scores are different in males and females? If so, explain the interaction, include the corresponding means in your explanation.arrow_forwardFor the data in the following matrix: No Treatment Treatment                Male    8 3 Overall M = 5.5 Female 4 4 Overall M = 4  Overall M = 6 Overall M = 3.5  Which two means are compared to determine whether there is a main effect of treatment? 8 and 3 4 and 4 5.5 and 4 6 and 3.5 8, 3, 4 and 4  Which two means are compared to determine whether there is a main effect of gender? 8 and 3 4 and 4 5.5 and 4 6 and 3.5 8, 3, 4 and 4  Which of the following statements is TRUE: There is a main effect of gender and a main effect of treatment There is a main effect of gender but no main effect of treatment There is a main effect of treatment but no main effect of gender There is no main effect of gender and no main effect of treatment  Is there treatment by gender interaction? Do the effects of treatment on the scores depend on the levels of gender? Do the effects of treatment on the scores are…arrow_forward
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