Chi-Square and Categorical Data Calculators
Tests for counts and categories: whether two categorical variables are associated, whether frequencies match expectations, and how a yes/no outcome changes over time.
Chi-Square Test of Independence Calculator
Test the association between two categorical variables, from raw data or a contingency table, with Cramér’s V.
Replaces SPSS CrosstabsChi-Square Goodness of Fit Calculator
Test whether observed category frequencies match expected proportions.
Replaces SPSSFisher’s Exact Test Calculator
Exact test for 2×2 tables with small samples, with the odds ratio and its confidence interval.
Replaces SPSS · PrismMcNemar Test Calculator
Test change in a paired binary outcome, such as yes/no before and after an intervention.
Replaces SPSSChi-Square Test of Independence Calculator
Use it to test whether two categorical variables are independent, such as treatment group and recovery.
Chi-Square Goodness of Fit Calculator
Use it to test whether categories occur in the proportions you expect, such as equal preference among options or a known population distribution.
Fisher’s Exact Test Calculator
Use it for 2×2 tables when any expected count is below 5.
McNemar Test Calculator
Use it for a binary outcome measured twice on the same people, or on matched pairs.
Other categories
Data cleaning and preparation · Describe and explore · Compare means · Nonparametric tests · Correlation and regression · Bayesian statistics · Reliability and agreement · Multivariate analysis · Structural equation modeling · Econometrics and time series · Panel data and causal inference · Marketing and decision research · Survival, clinical and meta-analysis · Study planning and calculators · PLS-SEM