Statistics Tools

Free calculators and tools to help you with your thesis or dissertation. No signup required for basic usage.

Calculators

Cronbach's Alpha Calculator

Calculate Cronbach's alpha instantly. Paste your data, get reliability coefficient, item-total correlations, alpha-if-deleted analysis, and APA-ready citation.

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Sample Size Calculator

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Determine the minimum sample size for your study. Supports t-tests, ANOVA, correlation, regression, and SEM.

AI Tools

Statistical Output Interpreter

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Paste your SPSS, AMOS, or Excel output and get plain-language interpretation with APA-formatted results.

Planners

Methodology Planner

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Answer a few questions about your research and get recommended statistical tests, sample size guidance, and a methodology roadmap.