Non experimental design

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Non experimental design

  1. 1. NON EXPERIMENTAL RESEARCH DESIGN PRESENTED BY MISS: RESHMASUZEN
  2. 2. Definition  Non experimental research design is one which the researcher observes the phenomena as they occur naturally , and no external variables are introduced.
  3. 3. needs  Human characteristics are inherently not subject to experimental manipulation  Studies which is unethical to manipulate  Research which is not practically possible to conduct experiment  Needed before an experimental study
  4. 4. TYPES  Descriptive research design  Correlational / Expost facto design  Developmental research design  Epidemiological design  Survey
  5. 5. DESCRIPTIVE RESEARCH DESIGN
  6. 6. Descriptive research design- features  Observes, describes and document  Occurs in natural settings  Help to gain more information about characteristics  Provide an impression of a situation  Do not involve the manipulation of variables  Used to develop theories, identify problems with current practice  Bias can be prevented
  7. 7. Types of descriptive research design Univarient Exploratory Comparative
  8. 8. CORRELATIONAL RESEARCH DESIGN
  9. 9. Correlational research- features  Examine change in one variable correlate with other  Correlational coefficient  Cause and effect study
  10. 10. Types of correlational study  Prospective study  Retrospective study
  11. 11. DEVELOPMENTAL RESEARCH DESIGN
  12. 12. Developmental research design Cross sectional longitudinal
  13. 13. Longitudinal studies Trends studies Panel studies Follow- up studies
  14. 14. EPIDEMIOLOGICAL RESEARCH DESIGN
  15. 15. Epidemiological research design Cohort study Case control study
  16. 16. Cohort study PEOPLE WITHOUT DISEASE EXPOSED UNEXPOSED DISEASE NODISEASE DISEASE NO DISEASE population
  17. 17. Case control Oral Contraceptives Cause Breast Cancer with breast cancer (Cases) Oral Contraceptive (Exposure) from same hospital Without Breast Cancer(control)
  18. 18. SURVEY RESEARCH DESIGN
  19. 19. Survey research study-based on nature of phenomenon under study Descriptive survey Exploratory survey Comparative survey Correlational survey
  20. 20. Survey study Written • questionnaire • opinionnaires oral • interview • Telephonic conversation electronic • Mail message • sms method of data collection
  21. 21. Advantages of non experimental research design  Closest to real situation  Suitable for nursing research  Cases in which manipulation is forbidden
  22. 22. summary  Non experimental research design Types  Descriptive  Expost/correlational  Developmental  Epidemiological design  Survey method Advantages and disadvantage
  23. 23. CONCLUSION We all are working together to one end, some with knowledge and design, and others without what they do…..

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