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Chapter Outlines
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The Importance of Studying Relationships

Variables
What is a Variable?
Quantitative Versus Categorical Variables
Independent Versus Dependent Variables
Moderator Variables
Extraneous Variables

Hypotheses
What is a Hypothesis?
Advantages of Stating Hypotheses in Addition to Research Questions
Disadvantages of Stating Hypotheses
Significant Hypotheses
Directional Versus Nondirectional Hypotheses





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