Understand every method, from first step to algorithm.
Practical workflows, methodological reasoning, equations, implementation details, verified references, and honest validation boundaries.
7 published articles
Run descriptive statistics
Summarise distributions, central tendency, variability, frequencies, and cross-tabulations.
Explore and visualise survey data
Filter respondents, create automatic charts, and build transparent crosstabs or numeric summaries from one immutable dataset version.
Frequencies and crosstabs
Understand counts, valid and total percentages, cumulative percentages and two-way contingency tables.
Interpret reliability evidence
Assess internal consistency for a defensible reflective multi-item score.
Correlation and regression
Explore associations or model continuous and binary outcomes with explicit variable roles.
Mediation and moderation
Estimate observed-variable indirect effects or continuous interactions using explicit theoretical roles.
Group comparisons and categorical inference
Technical guide to Student and Welch t tests, paired t tests, conventional and Welch ANOVA, chi-square and Fisher exact tests.