GraphPad Software
GraphPad Software has been dedicated to creating software exclusively for the international scientific community since 1984. Created by scientists for scientists, our intuitive programs provide researchers worldwide with the tools they need to simplify data analysis, statistics and graphing. Please visit Graphpad.com for more information and to download the free 30-day Prism trial at http://www.graphpad.com

New tools for graph customization and data exploration

Access more results than ever before

Wrangle your data with all new tools

Prism Cloud Beta: Collaboration made simple

A responsive P value summary method

Access more data than ever before

New options for two-way ANOVA multiple comparisons

A more open file format

Prism 10: A Quick Glance

Repeated Measures ANOVA and How It Differs From Ordinary ANOVA

How to Choose Between a One Sided and Two Sided Test

How to Choose Between a Parametric and Nonparametric Analysis

When to Use Regression Instead of ANOVA

How to Choose Between a Paired and Unpaired T Test

How to Choose Between Regression and Correlation

How to Choose the Right Statistical Test

How to Avoid P Hacking

What is P Value?

Understanding Different Types of Data

Understanding Regression Goodness of Fit

Multiple Linear Regression With Two Predictors

An Introduction To Correlation

Chi-Square and Fisher's Exact Test Explained

An Introduction To One way ANOVA

An Introduction to Statistics

How to Perform a Two Sample T-Test

Descriptive Statistics with Prism

How To Use Data Exploration to Check Statistical Assumptions

How To Calculate Sample Size Using Power Analysis

How To Create and Customize High Quality Graphs