Research Methods for Behavioral Sciences - With MindTap
6th Edition
ISBN: 9781337754989
Author: GRAVETTER
Publisher: CENGAGE L
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Textbook Question
Chapter 9.1, Problem 2LO
Describe how time-related factors such as history, maturation, instrumentation, statistical regression, and order effects can threaten the internal validity of some within-subjects experiments.
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What is the summary of the overall model of the data shown in question 1? Is it one that you would trust from a statistical standpoint? specifically why ?
As a good experimenter, you have built a predictive model of the experimental data. The differences between the actual response data and the model data are termed:
A. Confounded data
B. Nested experiments
C. Residuals
D. Efficiency of estimators
At the 5% significance level, are the predictor variables jointly significant?
At the 5% significance level, evaluate each of the independent or predictor variables.
Think about the five common problems with regression models, what is most likely wrong with this model?
Chapter 9 Solutions
Research Methods for Behavioral Sciences - With MindTap
Ch. 9.1 - Describe the general characteristics of a...Ch. 9.1 - Describe how time-related factors such as history,...Ch. 9.2 - For a within-subjects experiment, explain how the...Ch. 9.2 - Define counterbalancing and explain how it is used...Ch. 9.2 - Describe the limitations of counterbalancing and...Ch. 9.3 - Explain the general advantages and disadvantages...Ch. 9.3 - Define a matched-subject design and explain how it...Ch. 9.4 - Describe the different ways that within-subjects...Ch. 9 - In addition to the key words, you should also be...Ch. 9 - Describe the characteristics of a within-subjects...
Ch. 9 - Time-related factors and order effects can...Ch. 9 - For a within-subjects experiment that includes a...Ch. 9 - Under what circumstances is it advisable to switch...Ch. 9 - Describe the circumstances in which...Ch. 9 - Explain why partial counterbalancing is sometimes...Ch. 9 - Describe the problems that can be caused by...Ch. 9 - A researcher has a sample of 30 rats that are all...Ch. 9 - Explain how a matched-subjects design attempts to...Ch. 9 - Describe the disadvantages of a multiple-treatment...Ch. 9 - At the beginning of this chapter, we described a...
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- Critically discuss the relationship between the concepts of Regression and Analysis of Variance (ANOVA).arrow_forwardWhat is meant by the term "Statistically Significant Difference"? If it is statistically significant does that automatically mean it is managerially significant?arrow_forwardHow might the absence of data screening affect a researcher’s data quality, their interpretations of the data, and thereby their interpretations of their study’s findings?arrow_forward
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