With a randomizer in the Survey Flow, you can randomly present question blocks, Embedded Data, and other Survey Flow elements. For example, in academic research, you could use a randomizer to assign participants to either a control block of questions or an experimental block of questions.
Any items in your Survey Flow can be randomized. This randomization can happen at any point in the flow.
In this example, after the Demographics block, respondents will be presented the Product Satisfaction, Customer Service, and Corporate Image blocks in a random order.
To set up randomization, first you’ll add the Randomizer, and second, you’ll choose the items you would like to randomize.
In the Edit Survey tab, click Survey Flow.
In your Survey Flow, click Add Below, or Add a New Element Here.
Move the elements you want to randomize so they are under the Randomizer. For more information on how to move elements in the Survey Flow, see Moving Elements within the Survey Flow.
Enter the number of elements you want to present. To indicate that all of the elements should be shown the same number of times, select Evenly Present Elements.
This Randomizer will evenly show 2 of the 3 blocks to each respondent.
When Evenly Present Elements is selected, you can click Edit Count to view how many times each element has been displayed.
These numbers should be roughly the same, but you can override the counts if you need to temporarily give preference to a specific element. For example, if you set one question block to “5″, while the others are set at “15″, this first question block will be displayed 10 times in a row to “catch up” with the other blocks and ensure even presentation.
Here you will also see the option to Reset All Counts back to 0, or to Restore All Counts to what they were before you changed them.
In addition to Blocks, the Randomizer can be used to randomize other elements in the Survey Flow. You can also use Branch Logic to nest multiple elements (like Blocks, End of Survey Elements, and Embedded Data) under a Randomizer.
Other elements in the Survey Flow can be randomized just like Blocks. One example is Embedded Data. You can use the Randomizer to randomly assign specific Embedded Data labels to each respondent.
In this survey, each respondent is randomly assigned to a Condition. If they are assigned to Condition 1 they view the Control block, and if they are assigned to condition 2 they view the Experiment A and Manipulation Check A blocks.
To nest multiple elements under a Randomizer as a set, you can use Branch Logic. Even if you don’t want to conditionally present the items, you’ll need to use a Branch to group them together.
In this survey, respondents are shown the Demographics block, and then randomly assigned to one of the two branches. If they are assigned to the first branch, they are shown Apparel and Shoes & Accessories and then directed to the end of the survey. If they are assigned to the second branch, they are shown Home & Garden and Electronics.
Move elements that belong in a set under the Branch.