---
title: "Research Statistics Calculators | XTRAW Tools"
description: "Research statistics calculators for effect size, sample comparisons, standardized differences, study planning, and statistical interpretation."
url: "https://xtraw.com/tools/calculators/statistics-calculators/research-statistics-calculators"
date: "2026-05-22T00:34:05+00:00"
language: "en-GB"
---

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 # Research Statistics Calculators

#### Latest Products

 [ ![Effect Size Calculator from XTRAW Tools](https://xtraw.com/images/virtuemart/product/resized/xtraw-effect-size-calculator-360x360_230x230.jpg) ](https://xtraw.com/tools/calculators/statistics-calculators/research-statistics-calculators/effect-size-calculator "Effect Size Calculator")  new

## [Effect Size Calculator](https://xtraw.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=2329&virtuemart_category_id=223&Itemid=173)

 Calculate Cohen's d and other effect size measures. Use ...

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