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Details Title: EDU 660 Description: Mid-Term Total Flash Cards: 35 Created: 03/04/2007 14:38:30	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term Conceptual variable Definition definition, uses words or concepts to define a variable. (Independent) Term variable Definition a label or name that represents a concept or characteristic that varies Term Operational Variable Definition Instrument used to measure the variable. (Dependent) Term Sources of knowledge Definition 1.Personal Experience 2. Tradition 3. Authority 4. Research Term Quantitative Research Definition Will have hypothesis. Empirical Data. Emphasizes numbers, measurement, deductive logic, and experiements. Term Qualitative Research. Definition You will have questions. Narrative data. Subjective, can change you opinion. Flexible. Term Qualitative Designs: Case Studies Definition in-depth study of a single program, event, activity, group. Term Qualitative Designs: Phenomenology Definition Study a behavior Term Qualitative Design: Ethnography Definition Go out and live among the group Term Qualitatitive Design: Grounded theory Definition Develop a theory Term True experimental Definition Subjects randomly chosen Term Quasi-Experimental Definition not randomly chosen Term Single Subject Definition One Subject is studied Term Continuous Variable Definition measured on a scale that can take on an infinate number of values. (test scores, rubrics) Term Categorical Variables Definition measured and assigned to groups on the basis of specific characteristics. (gender, grade level) Term Operational definition Definition indication of a variable through the specification of the manner by which it is measured, categorized, or controlled. (I.Q. Test) Term Examples of Extraneous Variables Definition Absences, Physical conditions, family structure, environmental, soci-economic, age. Term Simple Random Sampling (Quanitative) Definition Each member of the population has the same probability of being selected. Term Systematic Sampling (Quantitative) Definition Every nth member of the population is selected. Term Stratified sampling (Quantitative) Definition Simple or systematic sampling in which the population is first divided into homogeneous subgroups. (LD, M, F, Grade) Term Proportional Sampling Definition Not Equal Term Disproportional Sampling Definition Equal amounts Term Cluster Sampling Definition Naturally occuring groups are selected-usually geographically. Term Nonprobability sample Definition Proability of selection not known Term Convient Sample Definition Choose a group you can easily obtain information from (Your own class) Term Purposive Sampling (Qualitative) Definition selection of particulary information or useful subjects. Term Typical Case Sampling (Qualitative) Definition Representative subjects Term Snowball sampling Definition selecting participants from recommendations of other participants. Term Critical Case Sampling (Qualitative) Definition selecting the most important participants to understand phenomena being studied. Term Purpose of sampling Definition Obtain generalizablity Term Standard deviation Definition Average distance of the scores from the mean. Term Percentile Rank Definition Percentage of scores at or below a specified score. Term Correlation Definition Measure of relationship between two or more quantitative variables Term Positive correlation Definition Increases in one variable accompanied by increases in the other variable. Term Correlation coefficient Definition Number between -1 and +1 that indicates the direction and strength of the relationship.