Research Tool

Statistics Calculator

Paste your data and actually run the test — descriptives, Welch's t-test, one-way ANOVA, Pearson correlation, ROC/AUC, and Spearman–Brown reliability, each with an effect size and an APA-style line. It pairs with the Statistical Test Selector, which names the test; this page computes it. Everything runs server-side from a deterministic statistics engine; nothing is stored.

Your data

Pick an analysis, then fill only the boxes it uses. Separate numbers with spaces, commas, or new lines.

Analysis

Box A — Sample / Group 1 / X / scores

Used by descriptives, t-test, Pearson (X), and ROC (scores).

Box B — Group 2 / Y / 0-1 labels

Used by t-test, Pearson (Y), and ROC (0/1 outcome labels).

ANOVA groups — one group of numbers per line

Used by one-way ANOVA only. Each line is one group.

Reliability r (Spearman–Brown)

Length factor k

Clear