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.

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

6. DESCRIPTIVE
RESEARCH DESIGN

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

9. CORRELATIONAL
RESEARCH DESIGN

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

12. DEVELOPMENTAL
RESEARCH DESIGN

13. Developmental research
design
Cross
sectional
longitudinal

14. Longitudinal studies
Trends
studies
Panel
studies
Follow-
up
studies

15. EPIDEMIOLOGICAL
RESEARCH DESIGN

16. Epidemiological research
design
Cohort
study
Case
control
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)

19. SURVEY RESEARCH
DESIGN

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…..