# Random

The random option allows you to randomize how the different elements in an experiment are displayed. You can:

* randomize the order that elements in an experiment are displayed. Linked elements are treated as a unit and presented in their fixed order. For example, randomize the stimulus position (an image) on the screen;
* randomize the size of a stimulus;
* randomize the duration of a stimulus within a range. If you select this option, duration settings under Intervals are overridden; 
* randomize the stimulus color (with a set of colors). 

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To randomize the order of elements in a stimuli phase, click on the **Settings** button, then select **Randomize**.

![](https://lh3.googleusercontent.com/f7GsTiJVkdbRtPCZ_asXHvGPUCP1T-DS3ZDo7qpmLMWC3PJJr0TzHJ5wX5KVE284mC5mgnoVltxRojDbRaNJaSIlDOaGHt7DUBuEJeppXYCLfnMo_X6hFfbXShNgvZWDgrFPi1r1=s0)