Chi-Square and Categorical Data Tests

Comparing event probabilities in two independent groups Relative Risk: Formula, Calculator, Interpretation, Python, R, SPSS and Excel Guide Relative risk, also called the risk ratio, compares…

Association between two categorical variables Pearson Chi-Square Test: Formula, Interpretation, Calculator, Python, R, SPSS and Excel Guide The Pearson Chi-Square Test evaluates whether two categorical variables…

Association between a binary exposure and binary outcome Odds Ratio: Formula, Interpretation, Calculator, Python, R, SPSS and Excel Guide The odds ratio compares the odds of…

Paired binary inference for before-and-after or matched outcomes McNemar’s Test: Formula, Interpretation, Calculator, Python, R, SPSS and Excel Guide McNemar’s Test compares two correlated binary classifications…

Paired multi-category symmetry analysis McNemar Bowker Test: Formula, Interpretation, Calculator, Python, R, SPSS and Excel Guide McNemar Bowker Test extends McNemar’s paired binary test to a…

Stratified 2 × 2 analysis for a common adjusted association Mantel Haenszel Test: Formula, Calculator, Interpretation, Python, R, SPSS and Excel Guide Mantel Haenszel Test is…

Likelihood-ratio inference for a two-way contingency table Likelihood Ratio Chi Square: Formula, Interpretation, Python, R, SPSS, SAS and Excel Guide Likelihood Ratio Chi Square tests whether…

Chance-corrected agreement for two paired binary classifications Kappa Statistic: Formula, Interpretation, Calculator, Python, R, SPSS, SAS and Excel Guide Kappa Statistic measures agreement between two raters,…

Likelihood-ratio goodness-of-fit analysis for one categorical variable G Test: Formula, Interpretation, Goodness-of-Fit Example, Python, R, SPSS and Excel Guide G Test is the likelihood-ratio counterpart to…

Chance-corrected agreement for three or more classifications Fleiss Kappa: Formula, Calculator, Interpretation, Python, R, SPSS and Excel Guide Fleiss Kappa measures agreement among three or more…