An proper study design guarantees the accomplishment of the research objectives.
The important factors that should be considered in the selection of the study design are the developed research question, as well as the process of selection.
The study design determines the way of selection and data analysis
Cross sectional studies are the best way to define prevalence and are useful at identifying companies that can then be more rigorously studied using a cohort study or randomised controlled study.
The cross-sectional study design is the most commonly used design and typically has an analytical component to test the relationship between the risk factor and the disease.
The analytical study designs of case-control, cohort and clinical trial will be examined in detail in the next article in this series.
To learn more about study designs, refer
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