The composition of the basic principles that act as the foundation of the research process is conceptualized as a three-legged stool. This chapter highlights the first of the three legs of the stool—namely, study design—that acts as the blueprint for researchers to collect, measure, and analyze the data of their health topic of interest. The study design hinges on the research topic of choice.
KeywordsDiagnostic study Reliability Validity Sensitivity Specificity Prognostic study Observational design Cohort study Incidence Case-control study Odds ratio Relative risk/risk ratio Cross-sectional study Prevalence Experimental study Randomization Clinical trial
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