Concepts and Operational Definitions. Theoretical Assumptions. Concepts can be:. One dimensional and have only one value. (For example if you only interview women, gender = women). Some concepts have multiple subparts or categories. (Gender = Male or Female).
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We construct operational definitions that include:
1) A detailed definition of the concept
2) Information about the scope of the concept measured.
3) Detailed information about how the concept will be measured. Standardized, structured methods for collecting the data are described. The concepts will contain several different values or categories (variables).
We also derive our concepts from previous theories. We examine how previous researchers have defined the concept. One approach to research, meta analysis, examines how operational definitions vary from study to study and how these definitions influence the findings.
Support for Candidate; Drop-out Rates.
Are statements linking cause and effect.
Express ideals about how society should work or does work.
Have been empirically tested and verified.
Provide different explanations for different phenomena. The choice of theory is up to the researcher.
Everyone will not simply agree with each theory. Quantitative researchers review different theories about one phenomena and then choose one theory to test.