- Sample size calculatorCochran with finite population correction — and the number of people you must approach, not just the responses you need.Free · working now · S6 · S8
- Cronbach's alpha interpreterEnter alpha and item count. Get the interpretation, the caveats, and how to report it.Free · working now · S8 · S10
- Model fit index checkerCFI, TLI, RMSEA and SRMR against the cut-offs your examiners use.Free · working now · S10
- Predatory journal red-flag scorerTwelve checks before you pay any submission fee.Free · working now · P1
- Effect size calculatorCohen's d, eta squared, and what counts as small, medium or large in your field.Free · working now · S10
- Normality decision guideWhich test, when, and what to do when your data is not normal.Free · working now · S10
- Reference formatterAPA 7, MLA and Chicago from your own references.Free · working now · S3 · S11
- Chapter word-count plannerDistribute your target length across chapters sensibly.Free · working now · S11
- Consent form builderAssemble a participant consent form from institution-approved wording.Free · working now · S7
Eight of the nine work today. Every one is free permanently — no account, no email, no usage limit. The consent form builder is the only one still in development.