Quick comparison: Random distribution, Least Filled concept testing, even distribution scripts

Do you want to collect an equal number of responses across multiple questions or concepts? There are several ways of achieving even distribution using different survey tools. Learn more about which method would work best for you.

	Random distribution	Least Filled concept testing	Even distribution scripts
Survey types	Classic surveys Modern surveys	Modern surveys	Power surveys
Description	Create a Group object. Add questions or concepts inside the group. Set the group to randomize object display. Entire workflow is UI-based.	Create a Group object. Add questions or concepts inside the group. Turn on the Least Filled toggle. Entire workflow is UI-based.	Add a script to the power survey using the Script Editor. Requires scripting.
Ideal for	Large sample sizes	Smaller sample sizes	Legacy power surveys that are difficult to convert
Limitations	Smaller sample sizes may not achieve completely even distribution.	The Least Filled toggle must be enabled at all times while the survey is live. Turning the toggle on and off while the survey is in-field disrupts the ability to tabulate completed responses and determine which concept has the lowest number, thereby compromising the ability to achieve even distribution.	Power surveys are a legacy tool that will be deprecated in the near future. When this happens, even distribution scripts will no longer be an option.
More information	Random distribution Example: Random distribution for concept tests (2 of 3 concepts) Example: Random distribution for concept tests (1 of n concepts)	Least Filled concept testing	Script Editor Guide to even distribution templates (Power Surveys)