![]() This makes it so that the length of the value captured must be greater than or equal to 20 characters in length. The constraint expression is as follows: (. With a field capturing age, for example, you can set a credible range between 18 and 100, as well as an optional code the user can enter that indicates that the age wasn’t provided ( -99). You can also include an exception if the respondent says they don’t know the value or if they refuse to answer. To build this or any constraint, you can use the constraint wizard in Surve圜TO’s online form designer for step-by-step guidance. The most common way to use a constraint is if you know the range of possible answers for an integer or decimal field. For more examples, as well as information on how to build and test constraints on the Surve圜TO platform, read this multi-part series of Support Center articles. ![]() This article presents a few examples of how you can use constraints to enhance data quality. ![]() ![]() So if a user’s entry or selection doesn’t meet the constraint, the user will have to correct it before continuing to the next field. Did you know that Surve圜TO makes it possible to automatically validate survey responses at the point of data collection? You can do so by using constraints, a powerful tool for ensuring high-quality data.Ī constraint is a condition that is applied to a field that must be satisfied before the value entered into that field is accepted. ![]()
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