Screening Out: How to remove unsuitable participants from your OpinionX survey

If you want to send different types of participants to different finish pages or external URLs, you can add Multiple Finish Pages to your survey and branch participants to different versions based on their answers to previous questions.

I need to remove unsuitable participants from my survey as early as possible and I don't want these people to get sent to the same Finish Page as the real participants that complete the whole survey. To do this, I'll create two Finish Pages: one for "Complete" participants that finished the survey and the other for "Screened Out" participants that I removed due to being unsuitable for my study:

Once you've created your Multiple Finish Pages, go to any question in your survey and you'll see all of your Finish Pages listed as potential destinations to send participants:

In the example below, you can see that I used this branching logic to "screen out" (ie. remove from my survey) participants under 18 years of age:

What if you need to send some data to the redirect URL about who the person is that's arriving on their website (this is a requirement for many participant recruitment platforms)? To do that, we'll use URL Parameters to hide this info inside the external link — click the block customization icon (⚙️) and enable URL Parameters:

If you have any Enrichment Fields already set up, then the URL Parameters box here will automatically include those fields by default:

You can use the "x" to remove the fields that you don't want sent as part of the redirect URL, or manually type additional fields if you want to include data in the URL manually youself (note: free tier surveys will drop any parameters from the URL, you must be on a paid plan for this feature).

Here's an example of this functionality in action! 👇👇👇

I've used the Enrichment Tab to include my participants' email address and ID automatically, so that I don't have to ask them to write this in themselves when I already have this data. When they're completing the survey, you'll be able to see this info in the Hidden Fields section of their current URL:

When they complete the survey and click through to the Finish Page's redirect link, you'll see that this email and ID will also be passed through on the URL because I have enabled the URL Parameters feature to do this for me:

This can allow me to automatically send data from OpinionX to an external database, like my CRM to track which customers have participated, or to a participant recruitment platform to validate that the person has completed the survey.