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class="cell"><h1 class="heading section-hero__title">Analysis of Variance (ANOVA)</h1><div class="section-hero__description">ANOVA is the go-to analysis tool for classical experimental design, which forms the backbone of scientific research</div><div class="grid-x grid-margin-x grid-margin-y section-hero__action"><div class="cell medium-shrink"><div class="grid-x grid-margin-x grid-margin-y"><div class="cell shrink medium-shrink"><a href="//www.graphpad.com/demos/" type="button" class="btn btn-primary btn-s section-hero__button">Start a Free Trial</a></div><div class="cell shrink medium-shrink"><a href="//www.graphpad.com/how-to-buy/" type="button" class="btn btn-outline2-info-light btn-s section-hero__button">Pricing</a></div></div></div></div><div class="section-hero__background section-hero__background--right section-hero__background--bottom"><img class="image h-60" alt="" src="https://cdn.graphpad.com/assets/18.7.33/assets/images/graphpad/survival-analysis/graphic-step-graph-576.png"/></div></div></div></div></section><section class="landing-simple-section bg-color-black--02"><div class="grid-container"><div class="grid-x"><div class="cell"><h2 class="heading landing-simple-section__title-v2 text-center mt-0 mb-0">Run all types of ANOVA in Prism</h2><div class="landing-simple-section__description-v2 text-l text-center mt-4">Including one-way, two-way, three-way nested, repeated measures, and more.</div><div class="grid-x grid-margin-x grid-margin-y justify-content-center"><div class="cell small-12 medium-6"><div class="box box--shadow bg-color-white"><img class="image" alt="" src="https://cdn.graphpad.com/assets/18.7.33/assets/images/graphpad/anova/repeated-measures-anova.gif"/></div></div><div class="cell small-12 medium-6"><div class="box box--shadow bg-color-white"><img class="image" alt="" src="https://cdn.graphpad.com/assets/18.7.33/assets/images/graphpad/anova/viral-infections-net-levels.gif"/></div></div></div></div></div></div></section><section class="landing-simple-section"><div class="grid-container"><div class="grid-x"><div class="cell"><h2 class="heading landing-simple-section__title-v2 text-center mt-0 mb-0">Performing ANOVA in Prism</h2><div class="landing-simple-section__description-v2 text-l text-center mt-4">Execute an ANOVA in 3 simple steps:</div><div class="grid-x grid-padding-x align-items-start feature"><div class="cell small-12 medium-6 feature__meta"><div class="feature__meta--indent"><div class="grid-x"><div class="cell shrink"><div class="feature__meta-number">1</div></div><div class="cell auto"><h3 class="heading feature__meta-title heading-l">Enter Your Data</h3><div class="feature__meta-description">Prism offers easy-to-understand data table formats to enter the values from your experiment.</div><div class="feature__meta-description">There are plenty of helpful examples that show you how to organize the data for your particular experiment.</div></div></div></div></div><div class="cell small-12 medium-6 feature__image"><div class="feature__image--indent"><span class="image-caption"><img class="image image--shadow" alt="" src="https://cdn.graphpad.com/assets/18.7.33/assets/images/graphpad/anova/ANOVA-Step-1-w800-trimmed-NON-curved-path.jpg"/></span></div></div></div><div class="grid-x grid-padding-x align-items-start feature"><div class="cell small-12 medium-6 feature__meta"><div class="feature__meta--indent"><div class="grid-x"><div class="cell shrink"><div class="feature__meta-number">2</div></div><div class="cell auto"><h3 class="heading feature__meta-title heading-l">Run Your Analysis</h3><div class="feature__meta-description">Prism can perform traditional repeated measures ANOVA with complete data and will automatically switch to a mixed-effects model when data are missing.</div></div></div></div></div><div class="cell small-12 medium-6 feature__image"><div class="feature__image--indent"><span class="image-caption"><img class="image image--shadow" alt="" src="https://cdn.graphpad.com/assets/18.7.33/assets/images/graphpad/anova/ANOVA-Step-2-w800-trimmed-curved-path.png.jpg"/></span></div></div></div><div class="grid-x grid-padding-x align-items-start feature"><div class="cell small-12 medium-6 feature__meta"><div class="feature__meta--indent"><div class="grid-x"><div class="cell shrink"><div class="feature__meta-number">3</div></div><div class="cell auto"><h3 class="heading feature__meta-title heading-l">Custom Visualizations</h3><div class="feature__meta-description">Go from data to elegant, publication-quality graphs - with ease.</div><div class="feature__meta-description">Prism makes it easy to collaborate with colleagues, receive feedback from peers, and share your research with the world.</div></div></div></div></div><div class="cell small-12 medium-6 feature__image"><div class="feature__image--indent"><span class="image-caption"><img class="image image--shadow" alt="" src="https://cdn.graphpad.com/assets/18.7.33/assets/images/graphpad/anova/Anova-Step-3-in-Prism-w800-4-Graphs-Rectangle.jpg"/></span></div></div></div></div></div></div></section><section class="bg-color-black--02 py-8"><div class="grid-container"><div class="grid-x align-items-center"><div class="cell medium-auto text-center px-12 px-8--md px-16--lg"><div class="mb-m20--lg"><img class="image image--shadow" alt="" src="https://cdn.graphpad.com/assets/18.7.33/assets/images/graphpad/cloud/prism-desk-mac.png"/></div></div><div class="cell medium-8"><h2 class="heading heading-l">Involve your team at any step in the process.</h2><div class="text-m">Share your data, analyses, and graphs in one click.</div><p class=""><a href="/cloud" class="link text-m">Learn more</a></p></div></div></div></section><section class="landing-simple-section"><div class="grid-container"><div class="grid-x"><div class="cell"><div class="grid-x grid-margin-x grid-margin-y"><div class="cell small-12"><h3 class="heading post-element__title-h3">ANOVA Highlights</h3></div></div><div class="grid-x grid-margin-x grid-margin-y justify-content-center"><div class="cell small-12 medium-6"><p class="post-element__paragraph">Prism is purpose-built for scientists, and at the heart of scientific research is experimental design and Analysis of Variance (ANOVA).</p><p class="post-element__paragraph">Choosing the correct ANOVA model can be challenging. With most statistical software programs, trying to figure out whether you fit the intended model is also difficult. Prism is different.</p><p class="post-element__paragraph">By asking relatable, jargon-free questions, Prism makes choosing the correct ANOVA model simple and transparent.</p></div><div class="cell small-12 medium-6"><div class="box bg-color-black--02 px-8 py-4"><p class="post-element__paragraph">ANOVA can be used to answer research questions:</p><ul class="ul ul-default post-element__ul"><li class="li post-element__list-item">Which experimental factors affect the response variable? And How?</li><li class="li post-element__list-item">Do factors in the model interact with one another?</li><li class="li post-element__list-item">How do treatment factors perform compared to a control or a placebo?</li></ul></div></div></div></div></div></div></section><section class="landing-simple-section pt-0"><div class="grid-container"><div class="grid-x"><div class="cell"><h2 class="heading landing-simple-section__title-v2 text-center mt-0 mb-0">Access Other ANOVA Resources</h2><div class="grid-x grid-margin-x grid-margin-y justify-content-center my-10"><div class="cell small-12 medium-4"><a href="/series/essential-statistics" class="link"><img class="image w-100" alt="" src="https://cdn.graphpad.com/assets/18.7.33/assets/images/graphpad/anova/1.jpg"/></a></div><div class="cell small-12 medium-4"><a href="/guides/the-ultimate-guide-to-anova" class="link"><img class="image w-100" alt="" 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