Overview about study designs and sampling
Defined as the distribution and the determinants of health related states and events in a particular population and it's application in controlling health problems.
Major study designs
1) Observational
2) Experimental
a) Observational
i) Descriptive studies
Features :
No comparison is being made. (hence, no control group is required)
Application of statistical test of significance is therefore not required.
The prevalence and incidence can be multi-centric, when >2 centres are used.
The main purpose of observational studies is to generate a hypothesis.
Major study designs
1) Observational
2) Experimental
a) Observational
i) Descriptive studies
Features :
No comparison is being made. (hence, no control group is required)
Application of statistical test of significance is therefore not required.
The prevalence and incidence can be multi-centric, when >2 centres are used.
The main purpose of observational studies is to generate a hypothesis.
Posted in
Community Medicine
|
23.1.11|By
Vishaal
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