Resources
Explore our educational resources to advance your knowledge of Prism, statistics and data visualization.
Getting Started with Prism
Master the basics in Prism with short video tutorials.
Guides
Learn key concepts in stats, curve fitting and data visualization with online guides and articles.
New!
Prism Academy
Advance your knowledge in statistics and data visualization with our new online learning center.
QuickCalcs
Run quick statistical tests with free online calculators.
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Getting Started with Prism
Five Things to Know
About Prism
Learn how to use Prism with these five important tutorials
Essential Statistics
in Prism
Learn to perform the most common types of analyses
Graphing
Basics
Learn how to customize graphs in Prism
Statistics
Bootcamp
Learn the fundamentals and perform better analyses
Explore More Video Tutorials
Explore Our Guides
Statistics Guide
A concise guide to doing statistical analyses with GraphPad Prism
Curve Fitting Guide
A guide to fitting curves (and lines) with GraphPad Prism
Prism User Guide
Guided examples of common analyses to get you started
Advance Your Skills with Prism Academy
FREE with a Prism subscription!
- 125+ videos and hours of learning material taught by highly-technical experts
- Exclusive FREE access to Intuitive Biostatistics, the leading biostatistics resource for working scientists
- Interactive quizzes and certifications to test your knowledge and demonstrate expertise
- Improve accuracy interpreting and presenting your research
- Master the art of data visualization and presentation
- Become more efficient and productive using Prism
- Plus much more!
QuickCalcs
Run statistical analyses quickly and directly in your browser
Categorical data
Fisher's, Chi square, McNemar's, Sign test, CI of proportion, NNT (number needed to treat), kappa.
Continuous data
Descriptive statistics, detect outlier, t test, CI of mean / difference / ratio / SD, multiple comparisons tests, linear regression.
Statistical distributions and interpreting P values
Calculate P from t, z, r, F or chi-square, or vice-versa. View Binomial, Poisson or Gaussian distribution. Correct a P value for multiple comparisons and Bayes.
Random numbers
Assign subjects to groups, simulate data.
Chemical and radiochemical data
Create and convert molar solutions, convert moles & grams, radioactivity calculations.
Explore the Knowledgebase
Popular Articles
- What is the meaning of * or ** or *** in reports of statistical significance from Prism or InStat?
- What is the difference between ordinal, interval and ratio variables? Why should I care?
- What is the difference between correlation and linear regression?
- 50% of what? How exactly are IC50 and EC50 defined?
- Probability vs. Odds
- The distinction between confidence intervals, prediction intervals and tolerance intervals
- Choosing a Statistical Test
- What does it mean when some results have e in the number?
- Why use n-1 when calculating a standard deviation?
- What you can conclude when two error bars overlap (or don't)
- How to report P values in journals
- Is it better to plot graphs with SD or SEM error bars? (Answer: Neither)
- How to create a 100% stacked column graph
- How do I transpose columns and rows of a Prism data table?
- Graph tip - How to put a gap (or gaps) in an axis
- Graph tip - How can I plot an odds ratio plot, also known as a Forest plot, or a meta-analysis plot?
- Understanding the ANOVA table (SS, df, MS, F) in two-way ANOVA
- How to compare two means when the groups have different standard deviations
- How can I determine an EC90 (or any EC value other than EC50)?