Patel, S.2023-06-272023-06-272022-09Patel S.. Qualitative - Binary, Nominal and Ordinal Data Analysis in Medical Science . National Journal of Community Medicine. 2022 Sep; 13(9): 663-6682229-68160976-3325http://imsear.searo.who.int/handle/123456789/217327The 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.Qualitative analysisnominal dataordinal dataJournal ArticleIndiaSurat Municipal Institute of Medical Education & Research, Surat