A plain-language guide to binary logistic regression, covering odds vs probability, what an odds ratio of 1.12 or 0.55 really means, model fit statistics and how to report the results.
A clear comparison of covariance-based and partial least squares SEM, covering when each is appropriate, what reviewers expect, and how to run both for free in your browser.
A hands-on walkthrough of CB-SEM Studio, from loading survey data and drawing constructs to fit indices, mediation, latent moderation, modification indices and APA-ready exports.
Work out how many participants you need, whether you are estimating a percentage in a survey or testing a hypothesis, with formulas, quick-reference tables and free calculators.
A practical guide to checking normality with plots and tests, understanding what really needs to be normal, and choosing the right fix when your data are skewed.
Browser tools, JASP, jamovi, PSPP, R and Python compared side by side, so you can choose free statistics software that fits your analysis, your skills and your deadline.
From KMO and Bartlett's test to choosing the number of factors, rotation, loading cut-offs and an APA write-up, everything you need to run an EFA on questionnaire data.
A one-page reference for writing up results in APA 7, with formatting rules for numbers and symbols, templates for the most common tests and a checklist for APA tables.