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EDPC 5310 Applied Research Design for Educators

EDPC 5310 Applied Research Design for Educators. Nature of Educational Research. Review Session. YOU will be withdrawn from the class after ___ abscesses. A: 1 B: 2 C: 3 D: 4. The Nature of Educational Research. Empirical From observations/experiments

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EDPC 5310 Applied Research Design for Educators

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  1. EDPC 5310 Applied Research Design for Educators Nature of Educational Research

  2. Review Session • YOU will be withdrawn from the class after ___ abscesses. • A: 1 • B: 2 • C: 3 • D: 4

  3. The Nature of Educational Research • Empirical • From observations/experiments • Collect data/information analyze data  learning • What forms are data collected? • Systematic • Valid • Reliable • Various of forms

  4. Threats to Research Validity • History • Testing • Statistical Regression • Experimental mortality • John Henry effect

  5. General Methods of Research • Experimental research • Quasi-experimental research • Non-experimental research • Historical research • Ethnographic research

  6. Paradigm of Knowledge Development • Positivist • Causal relationship between variables • Post-positivist • Relationships between variables can be different, depending on values, theories, or situations…. • Constructivism • Transformative • Embrace any methods necessary to produce solutions/explanations for researched problems.

  7. Activities of The Research Process Identify the research problem Data analysis

  8. Communicate with Readers about A Research • 1st: Literature review 2nd: Research Questions Research Hypotheses

  9. Research Questions Research questions or that the researchers are seeking for answers

  10. Research Hypotheses Research hypotheses are statements relationships among variables

  11. Research Hypotheses • Null Hypotheses • Alternative hypotheses

  12. Evaluating Applicability of a research Project Is it interested me? Is it researchable? Is the question answerable? What information I need to have to answer the question? Is the scope manageable? Do I have access to the data resources?

  13. Composing Research Questions/ Research Hypotheses for Quantitative Research

  14. Quantitative Research Design

  15. Purposes of Research DesignExperimental Research • What are purposes of research design?

  16. Characteristics of Good Research Design • Free from • Free From • Control of Variables • Precision for Testing

  17. Experimental Design • At least one IV is deliberately manipulated/vary by researchers. EX: • Duration of exercise • treatment • Gender groups • Age groups • Ethnicity groups

  18. Well-Designed Experiment • 1. Adequate experimental control • 2. Lack of artificiality • 3. Basis for comparison • 4. Adequate information from the data • 5. Uncontaminated data • 6. No confounding variables • 7. Representativeness • 8. Parsimony:

  19. Experimental validity • Internal validity • Quality of data • External Validity • Generalisability • Statistical precision/decision

  20. Threats to Experimental Validity • See page 141 & 142

  21. Experimental Designs • Posttest only Control group design • Pre-post test control group design • Solomon Four groups design (p.149) • Factorial Designs • Repeated Measures Design • Taking medicine and then repeatedly tested for the effect to kick in or fade away

  22. Quantitative Research DesignCorrelational Design • Describe or measure the degree of association between two or more variables or sets of scores.

  23. Quantitative Research DesignCorrealtional Design • Characteristics: • Correlate two or more variables • Collect data at one point in time • One group • Each participant provides at least two scores • Correaltional statistics are reported • Pearson r • The strength of association between variables are interpreted.

  24. Quantitative Research DesignSurvey Design • Survey Study • The researchers administer a questionnaire or interviews to a sample or a entire population to describe the attitudes, opinions, behaviors, or characteristics of the population.

  25. Quantitative Research DesignSurvey Design: Characteristics • Sampling from a population • Obtain a sample from its population, and then generalize findings to the population. • Collecting data • Interviews: • Questionnaires

  26. Quantitative Research DesignSurvey Design • Differences between survey and design and experimental design:

  27. Quantitative Research DesignSurvey Design • Correlational study and survey study are very similar: • Both correlate variables • Differences between survey and design and experimental design:

  28. Quantitative Research DesignSurvey Design • Why is the survey preferred for the research project? • Advantage: Economical, Speed of data collection…

  29. Questions?

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