In all likelihood, you have used a Likert scale (or something you’ve called a Likert scale) in a survey before. It might surprise you to learn that Likert scales are a very specific format and what you have been calling Likert may not be. Not to worry — researchers that have been doing surveys for… Read More »
URL Variable Based
What is this?
This feature allows you to attach a predetermined unique URL variable to a survey link and will only allow one response per unique URL variable.
How would you use this?
You would use this if you wanted to make sure that you were receiving only response per link that you sent out and you were not able to use the IP based or Cookie based duplicate protection.
To better understand how to use this feature, check out this tutorial on returning respondents to their individual response.
Apr. 17 
Apr. 5