In: Nursing
Clinical trials
These are the scientific studies. This is conducted to find better way to prevent, screen,diagnose or treat diseases.It is also used high quality data to take the better health care decision .
Eg:Testing the efficacy of a drug
2. Correlational studies
It is a non experimental research.In this type researcher measures two variables and assess the correlation between them.
Eg:Correlation between cancer and marriage
3. Observational trials
These are the fundamental part of the epidemiological research.In this study researcher observes the individuals without any manipulation or intervention.Researcher observes the effect of risk factor, diagnosis or treatment with out changing anything.The 2 types of observational studies are cohort study and case control studies.
Eg:Effect of eating organic foods on over all health
4. Epidemiological studies
Epidemiological studies are conducted to evaluate the relationship between the cause and effect.
Eg: Effect of smoking and lung cancer
5. Plant studies
Study of plants are called botony.It is a branch of biology.
As per the above given information the research method explains the cause and effect are epidemiological studies