Statistics Made Simple.
APA-Ready Results.
Run statistical tests instantly and get results formatted in APA 7th edition. Export to Word with one click. Built by statisticians, for researchers.
See It In Action — 3 Simple Steps
1. Enter Data
Group A: 85, 90, 78, 92, 88
Group B: 72, 68, 75, 70, 73
2. Get Results
t(8) = 4.47, p = .002, d = 2.83
3. APA Format Ready
An independent-samples t-test revealed a significant difference, t(8) = 4.47, p = .002, d = 2.83.
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20 Statistical Tests
Comprehensive coverage
APA 7th Edition
Publication-ready format
100% Free
No hidden costs
Zero Data Collection
Runs in your browser
Free Statistics Calculators
Why StatMate?
APA 7th Edition
Results are automatically formatted to APA standards. No more manual formatting.
Instant Results
All calculations run in your browser. No server needed. Fast and private.
Export to Word
One-click export to .docx with perfect APA tables. Copy-paste into your paper.
How It Works
Enter Your Data
Paste your data directly or enter summary statistics. Supports comma, space, or newline separated values.
Get APA Results
Click Calculate and get publication-ready results: test statistic, p-value, effect size, and confidence intervals.
Export & Cite
Copy results to clipboard or export APA-formatted tables to Word. Paste directly into your manuscript.
Trusted Calculations
All 20 Calculators Validated Against R & SPSS
Every calculator in StatMate has been cross-validated against R (the gold standard for statistical computing) and SPSS. Our results match to at least 4 decimal places across all test statistics, p-values, and effect sizes.
Parametric Tests
- ✓Independent & Paired T-Test → R t.test()
- ✓One-Sample T-Test → R t.test(mu=...)
- ✓One-Way ANOVA → R aov() + Bonferroni
- ✓Two-Way ANOVA → R aov() interaction
- ✓Repeated Measures ANOVA → R aov() + Error()
Non-Parametric Tests
- ✓Mann-Whitney U → R wilcox.test()
- ✓Wilcoxon Signed-Rank → R wilcox.test(paired=TRUE)
- ✓Kruskal-Wallis H → R kruskal.test()
- ✓Friedman Test → R friedman.test()
- ✓Chi-Square → R chisq.test()
- ✓Fisher's Exact → R fisher.test()
Regression & Modeling
- ✓Simple Regression → R lm()
- ✓Multiple Regression → R lm() + VIF
- ✓Logistic Regression → R glm(family=binomial)
- ✓Pearson & Spearman → R cor.test()
Reliability & Other
- ✓Cronbach's Alpha → R psych::alpha()
- ✓Factor Analysis (EFA) → R factanal()
- ✓McNemar Test → R mcnemar.test()
- ✓Sample Size / Power → R pwr package
- ✓Descriptive Statistics → R summary()
Privacy by Design
Your data never leaves your device. All statistical calculations run entirely in your browser using client-side JavaScript. No data is uploaded, stored, or logged on our servers.
AI-Powered Interpretation
Pro feature — see how AI explains your results in plain language
Sample AI Output
PAPER-READY SENTENCE
An independent-samples t-test revealed that participants in the experimental condition (M = 88.07, SD = 4.94) scored significantly higher than those in the control condition (M = 79.07, SD = 3.15), t(23.47) = 5.87, p < .001, d = 2.15, 95% CI [5.82, 12.18].
PLAIN-LANGUAGE INTERPRETATION
The new teaching method produced substantially higher exam scores — about 9 points higher on average. This is a very large effect, meaning the difference would be immediately noticeable in a classroom setting. The probability of seeing this difference by chance alone is less than 1 in 1,000.
How Researchers Use StatMate
Psychology Master's Student
Used StatMate to run an independent-samples t-test for her thesis data. The APA-formatted output saved hours of manual formatting — she just copied the result directly into her paper.
Research Methods Instructor
Uses StatMate in class to demonstrate how different statistical tests work. Students enter sample data and instantly see APA-formatted results, making abstract concepts concrete.
PhD Candidate, Education
Ran 5 different tests for her dissertation — t-test, ANOVA, correlation, chi-square, and regression. Exported all results to Word in APA format with one click each.
Frequently Asked Questions
Is StatMate really free?
Yes! All 20 statistical calculators are completely free with no sign-up required. Pro features like AI interpretation and Word export are available for $9.99/month.
Is my data safe?
Absolutely. All calculations run entirely in your browser. Your data never leaves your device — we don't upload, store, or log any of your research data.
How accurate are the results?
Every calculator is cross-validated against R and SPSS to at least 4 decimal places. We use established formulas from authoritative statistics textbooks.
What is APA format?
APA (American Psychological Association) format is the standard reporting style used in psychology, education, and social sciences. StatMate automatically formats your results following APA 7th edition guidelines.
Can I use StatMate for my thesis or dissertation?
Yes! StatMate provides publication-ready APA formatted results that you can directly copy into your thesis, dissertation, or research paper. You can also cite StatMate using the formats on our About page.
Which statistical tests are available?
StatMate offers 20 tests: T-tests (independent, paired, one-sample), ANOVA (one-way, two-way, repeated measures), non-parametric tests (Mann-Whitney, Wilcoxon, Kruskal-Wallis, Friedman, Fisher's exact), regression (simple, multiple, logistic), chi-square, correlation, factor analysis, Cronbach's alpha, McNemar test, and more.
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