Correlation, Regression and PROCESS Tools
Measure how variables relate and build models that predict an outcome. Includes Pearson, Spearman and Kendall correlations, linear and logistic regression, and PROCESS-style mediation and moderation.
Correlation Coefficient Calculator
Pearson, Spearman or Kendall correlations with p-values and confidence intervals for any set of variables.
Replaces SPSS · ExcelPartial Correlation Calculator
Correlation between two variables after controlling for one or more others.
Replaces SPSSSimple Linear Regression Calculator
Fit a straight line to predict one variable from another, with the equation, R² and residual plot.
Replaces SPSS · ExcelMultiple Linear Regression Calculator
Predict an outcome from several predictors, with standardized betas, VIF and automatic dummy coding.
Replaces SPSS · StataBinary Logistic Regression Calculator
Predict a yes/no outcome with odds ratios, pseudo R², Hosmer-Lemeshow test and a classification table.
Replaces SPSS · StataPROCESS Macro Online
Every Hayes PROCESS model, 1 to 76 plus custom models: mediation, moderation and moderated mediation with bootstrap CIs.
Replaces SPSS PROCESS macroMediation Analysis Calculator
Simple, parallel and serial mediation (PROCESS Models 4 and 6) with bootstrap CIs, contrasts and covariates.
Replaces SPSS PROCESS macroModeration Analysis Calculator
Simple, additive and three-way moderation (PROCESS Models 1–3) with simple slopes and the Johnson-Neyman technique.
Replaces SPSS PROCESS macroModerated Mediation Analysis
Conditional indirect effects and the index of moderated mediation for PROCESS Models 7, 8, 14, 15, 21, 58, 59 and more.
Replaces SPSS PROCESS macroSerial Mediation Analysis
Mediators in a causal chain (PROCESS Model 6) with every specific indirect effect, contrasts and the total indirect effect.
Replaces SPSS PROCESS macroThree-Way Interaction Calculator
Three-way interactions X × W × Z (PROCESS Model 3) with conditional effects at every combination of moderator values.
Replaces SPSS PROCESS macroCorrelation Coefficient Calculator
Use Pearson’s r for two continuous, roughly normal variables with a linear relationship. Use Spearman’s ρ or Kendall’s τ for ordinal data, outliers or curved but monotonic trends. A point-biserial correlation is Pearson’s r with one variable coded 0/1.
Partial Correlation Calculator
Use it when a third variable may explain part of the relationship between two others.
Simple Linear Regression Calculator
Use it to describe or predict a continuous outcome from one continuous predictor.
Multiple Linear Regression Calculator
Use it to predict a continuous outcome from two or more predictors, or to test one predictor while controlling for others.
Binary Logistic Regression Calculator
Use it when the outcome has two categories and you want to know which predictors raise or lower the odds of the event.
PROCESS Macro Online
Use PROCESS when your hypothesis involves a mechanism (mediation), a boundary condition (moderation), or both (conditional process analysis). Choose the model number that matches your conceptual diagram, or use the custom option to moderate any combination of paths.
Mediation Analysis Calculator
Use mediation analysis to test a mechanism: whether X affects Y by changing M. Model 4 handles one or several parallel mediators; Model 6 handles mediators in a causal chain. Bootstrap CIs are now preferred to the Baron and Kenny steps and the Sobel test.
Moderation Analysis Calculator
Use moderation analysis when theory says the strength or direction of an effect changes with a third variable. Model 1 has one moderator, Model 2 two additive moderators, and Model 3 a three-way interaction (moderated moderation).
Moderated Mediation Analysis
Use moderated mediation when a moderator changes the first stage (Model 7), the second stage (Model 14), both (Models 21 and 58), or the direct effect as well (Models 8, 15, 59).
Serial Mediation Analysis
Use serial mediation when mediators influence each other in a fixed order, for example leadership builds trust, trust builds engagement, and engagement raises performance.
Three-Way Interaction Calculator
Use a three-way interaction when a moderation effect is expected to differ across levels of a second moderator.
Other categories
Data cleaning and preparation · Describe and explore · Compare means · Nonparametric tests · Bayesian statistics · Categorical data · 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