> For the complete documentation index, see [llms.txt](https://upgrade-platform.gitbook.io/upgrade-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://upgrade-platform.gitbook.io/upgrade-documentation/6.6/creating-an-experiment/factorial-experiment.md).

# Experiment Types

### **Simple Experiment**

A simple experiment tests the effect of one independent variable on the dependent variable(s). The independent variable is the **Condition**, which is defined on the experiment detail page. Experiments can have multiple conditions, and these can be equally or unequally weighted. 

<div data-with-frame="true"><figure><img src="https://content.gitbook.com/content/9J1rtgIsHaRPXmHp08EB/blobs/252Z8BTLzE9FiZWWnoqG/image.png" alt=""><figcaption></figcaption></figure></div>

<div data-with-frame="true"><figure><img src="https://content.gitbook.com/content/9J1rtgIsHaRPXmHp08EB/blobs/hFARttW6mbVdZmqKjeO9/image.png" alt=""><figcaption></figcaption></figure></div>

### **Factorial Experiment**

Factorial experiments test two or morere independent variables simultaneously, crossing all levels to explore individual effects as well as their interactions. UpGrade currently supports 2x2 factorial designs.&#x20;