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How to Design and Evaluate Research in Education Book Cover
How to Design and Evaluate Research in Education, 5/e
Jack R. Fraenkel, San Francisco State University
Norman E. Wallen, San Francisco State University

Variables and Hypotheses

Chapter Outline


The Importance of Studying Relationships

Variables

What is a Variable?
Quantitative versus Categorical Variables
Independent versus Dependent 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