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| definition, uses words or concepts to define a variable. (Independent) |
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| a label or name that represents a concept or characteristic that varies |
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| Instrument used to measure the variable. (Dependent) |
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1.Personal Experience
2. Tradition
3. Authority
4. Research |
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| Will have hypothesis. Empirical Data. Emphasizes numbers, measurement, deductive logic, and experiements. |
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| You will have questions. Narrative data. Subjective, can change you opinion. Flexible. |
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| Qualitative Designs: Case Studies |
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| in-depth study of a single program, event, activity, group. |
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| Qualitative Designs: Phenomenology |
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| Qualitative Design: Ethnography |
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| Go out and live among the group |
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| Qualitatitive Design: Grounded theory |
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| measured on a scale that can take on an infinate number of values. (test scores, rubrics) |
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| measured and assigned to groups on the basis of specific characteristics. (gender, grade level) |
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| indication of a variable through the specification of the manner by which it is measured, categorized, or controlled. (I.Q. Test) |
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| Examples of Extraneous Variables |
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Definition
| Absences, Physical conditions, family structure, environmental, soci-economic, age. |
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| Simple Random Sampling (Quanitative) |
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Definition
| Each member of the population has the same probability of being selected. |
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| Systematic Sampling (Quantitative) |
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Definition
| Every nth member of the population is selected. |
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| Stratified sampling (Quantitative) |
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Definition
| Simple or systematic sampling in which the population is first divided into homogeneous subgroups. (LD, M, F, Grade) |
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| Naturally occuring groups are selected-usually geographically. |
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| Proability of selection not known |
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| Choose a group you can easily obtain information from (Your own class) |
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| Purposive Sampling (Qualitative) |
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Definition
| selection of particulary information or useful subjects. |
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| Typical Case Sampling (Qualitative) |
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Definition
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Definition
| selecting participants from recommendations of other participants. |
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| Critical Case Sampling (Qualitative) |
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Definition
| selecting the most important participants to understand phenomena being studied. |
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| Average distance of the scores from the mean. |
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| Percentage of scores at or below a specified score. |
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| Measure of relationship between two or more quantitative variables |
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| Increases in one variable accompanied by increases in the other variable. |
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Definition
| Number between -1 and +1 that indicates the direction and strength of the relationship. |
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