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StatClinic Statistical Tools
Standalone medical research calculators with built-in interpretation and publication-ready reporting. Organized by analysis category.
Wizards & Knowledge Hubs
16 pages
Regression WizardNewAnswer a few questions to find the right regression model: linear, logistic, ordinal logistic, Poisson, or Cox.
Correlation WizardNewFind out whether Pearson or Spearman correlation is right for your data.
ANOVA WizardNewFind the right group-comparison test: t-test, ANOVA, ANCOVA, MANOVA, or their non-parametric equivalents.
Diagnostic Testing WizardNewFind out whether you need ROC/AUC analysis or simple sensitivity/specificity.
Survival Analysis WizardNewFind out whether you need Kaplan-Meier, Cox regression, or a hazard ratio calculation.
Categorical Data WizardNewFind the right categorical test: chi-square, Fisher exact, McNemar, Cochran Q, or odds ratio.
Reliability & Agreement WizardNewFind the right reliability test: Cronbach's Alpha, Cohen's Kappa, ICC, or Bland-Altman.
Meta-Analysis WizardNewFind out whether you need a standard meta-analysis or a meta-regression.
Regression Analysis HubNewComplete learning center: regression calculators, guides, FAQs, and reporting checklists.
Correlation Analysis HubNewComplete learning center: correlation calculator, guides, FAQs, and reporting checklists.
ANOVA & Group Comparisons HubNewComplete learning center: t-tests, ANOVA family, and post-hoc tests.
Diagnostic Testing HubNewComplete learning center: ROC, sensitivity/specificity, Youden Index, DeLong, DCA.
Survival Analysis HubNewComplete learning center: Kaplan-Meier, Cox regression, hazard ratio.
Categorical Data HubNewComplete learning center: chi-square, Fisher, McNemar, Cochran's Q, OR/RR.
Reliability & Agreement HubNewComplete learning center: Cronbach's Alpha, Cohen's Kappa, ICC, Bland-Altman.
Meta-Analysis HubNewComplete learning center: pooled effects and meta-regression.
Statistical Tests & Significance
7 tools
P Value CalculatorCalculate p-values from t, z, chi-square, F, correlation, regression, OR, RR, and proportion tests.
Chi-Square CalculatorChi-square test for categorical association in 2×2 and larger contingency tables. Includes Phi and Cramér's V.
ANOVA CalculatorOne-way ANOVA from group statistics. Computes F-statistic, p-value, and eta squared effect size.
McNemar Test CalculatorNewPaired binary outcomes: test for significant change before vs after, or compare two paired diagnostic tests.
Friedman Test CalculatorNewNon-parametric repeated measures for ordinal or non-normal data. Includes pairwise post-hoc comparisons.
Diagnostic & Epidemiological Measures
9 tools
Odds Ratio CalculatorOR with 95% CI and interpretation for case-control studies and logistic regression output.
Relative Risk CalculatorRR with 95% CI for cohort studies and clinical trials.
Hazard Ratio CalculatorNewHR, 95% CI, and p-value from reported HR+CI or from event counts and person-time.
Confidence Interval Calculator95% CIs for means and proportions. Suitable for any study design.
Sensitivity CalculatorDiagnostic test sensitivity from true positives and false negatives.
Specificity CalculatorDiagnostic test specificity from true negatives and false positives.
PPV CalculatorPositive Predictive Value — probability of disease after a positive test result.
NPV CalculatorNegative Predictive Value — probability of no disease after a negative result.
ROC Curve CalculatorAUC, 95% CI, Youden Index, and optimal cutoff for diagnostic test accuracy.
Reliability & Agreement
4 tools
Cronbach Alpha CalculatorInternal consistency reliability for multi-item questionnaires and scales. Includes benchmark interpretation.
Cohen's Kappa CalculatorNewInter-rater agreement for categorical outcomes corrected for chance. Includes 95% CI and Landis & Koch benchmarks.
ICC CalculatorNewIntraclass Correlation Coefficient for continuous measurement reliability. One-way random effects model with 95% CI.
Bland-Altman AnalysisNewCompare two measurement methods: mean bias, 95% limits of agreement, and Bland-Altman plot.