σStatsTest
Login
Library

StatsTest Blog

Experimental design, data analysis, and statistical tooling for modern teams. No hype, just the math.

Filters

Browse topics

Clear all
Two-Group ComparisonsNon-Parametric Tests
All topicsA/B TestingAssumptionsDifferenceDistributionsEffect SizesGoodness of FitModel EvaluationMulti-Group ComparisonsPredictionRegressionRelationshipReportingSurvival AnalysisTwo-Group Comparisons

Focus

AllBootstrap MethodsNon-Parametric TestsRate MetricsVariance TestsRobust MethodsStudy DesignFundamentalsT-Tests
StatsTest
Two-Group ComparisonsJan 26New

Comparing Medians: Statistical Tests and Better Options

When you need to compare medians instead of means, standard tests often fall short. Learn about Mood's median test, quantile regression, and bootstrap methods for proper median comparison.

statstest_flowTwo-Group ComparisonsSupporting
StatsTest
Two-Group ComparisonsJan 26New

Mann-Whitney U Test: What It Actually Tests and Common Misinterpretations

The Mann-Whitney U test is widely misunderstood. Learn what it actually tests (stochastic dominance), when it's appropriate, and why it's not always a substitute for the t-test.

statstest_flowTwo-Group ComparisonsSupporting