Research Methods in Applied Settings: An Integrated Approach to Design and Analysis

By Jeffrey A. Gliner; George A. Morgan | Go to book overview

CHAPTER 4
Research Problems, Variables, and Hypotheses
Research Problems
Two Sample Problems
Sources of Research Problems
Characteristics of a Good Research Problem
Broad Versus Narrow
Widespread Versus Limited Interest
Well-Researched Versus Unknown Territory
Variables
Definition of a Variable
Operational Definitions of Variables
Independent Variables
Active Independent Variables
Attribute Independent Variables
Type of Independent Variable and Inferences About Causes
Levels of the Independent Variable
More Than One Independent Variable
Dependent Variables
Extraneous Variables
Ordered Versus Unordered or Nominal Levels of Variables
Other Considerations About Variables
Groups or Sets of Variables
Hypotheses and Research Questions
The Anxiety and Heart Rate Problem Revisited
The Mastery Motivation Problem Revisited

-43-

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