Qualitative - Binary, Nominal and Ordinal Data Analysis in Medical Science

The outcome of any medical research is belonged to the human beings. The correct application of statisti-cal test has its paramount importance. This article provides the details of categorical data analysis test with example and with its interpretation. It is included when to use Chi-square test (2*2 & R*C), Yate`s Correction, Fisher Exact test, Mc Nemartest manually as well as using Open Epi and R codes.