Non experimental design
This document discusses non-experimental research design. It defines non-experimental research as observing phenomena naturally without introducing external variables. The main types of non-experimental design discussed are descriptive research, which observes and documents characteristics; correlational/expost facto research, which examines how changes in one variable correlate with others; developmental research, which studies changes over time; epidemiological design including cohort and case-control studies; and survey research using questionnaires or interviews. Advantages of non-experimental design include studying real-world situations, researching topics that cannot be experimentally manipulated, and being suitable for nursing research.
Non experimental design
- 2. NON EXPERIMENTAL RESEARCH DESIGN PRESENTED BY MISS: RESHMASUZEN
- 3. Definition Non experimental research design is one which the researcher observes the phenomena as they occur naturally , and no external variables are introduced.
- 4. 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
- 5. TYPES Descriptive research design Correlational / Expost facto design Developmental research design Epidemiological design Survey
- 7. 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
- 8. Types of descriptive research design Univarient Exploratory Comparative
- 10. Correlational research- features Examine change in one variable correlate with other Correlational coefficient Cause and effect study
- 11. Types of correlational study Prospective study Retrospective study
- 17. Cohort study PEOPLE WITHOUT DISEASE EXPOSED UNEXPOSED DISEASE NODISEASE DISEASE NO DISEASE population
- 18. Case control Oral Contraceptives Cause Breast Cancer with breast cancer (Cases) Oral Contraceptive (Exposure) from same hospital Without Breast Cancer(control)
- 20. Survey research study-based on nature of phenomenon under study Descriptive survey Exploratory survey Comparative survey Correlational survey
- 21. Survey study Written • questionnaire • opinionnaires oral • interview • Telephonic conversation electronic • Mail message • sms method of data collection
- 22. Advantages of non experimental research design Closest to real situation Suitable for nursing research Cases in which manipulation is forbidden
- 23. summary Non experimental research design Types Descriptive Expost/correlational Developmental Epidemiological design Survey method Advantages and disadvantage
- 24. CONCLUSION We all are working together to one end, some with knowledge and design, and others without what they do…..