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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Concept explainers

Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as p…
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Textbook Question
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Chapter 13.4, Problem 2LC

Which of the following accurately describes an interaction between two variables?

  1. a. The effect of one variable depends on the levels of the second variable.
  2. b. Both variables are equally influenced by a third factor.
  3. c. The two variables are differentially affected by a third variable.
  4. d. Both variables produce a change in the subjects’ scores.
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Chapter 13 Solutions

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

Ch. 13.1 - Where are individual differences located in the...Ch. 13.1 - What happens to the variability due to individual...Ch. 13.2 - What happens during the second stage of a...Ch. 13.2 - Prob. 2LCCh. 13.2 - For the following data, what are the df values for...Ch. 13.2 - The results of a repeated-measures ANOVA are...Ch. 13.3 - Prob. 1LCCh. 13.3 - A repeated-measures ANOVA produced an F-ratio of F...Ch. 13.4 - A two-factor study with two levels of factor A and...Ch. 13.4 - Which of the following accurately describes an...
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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