Other populations, however, can be difficult to motivate. Generally speaking, the more motivated the population, the more likely they are to complete questionnaires of greater length. Question types utilized: The length of a questionnaire should be measured not only in terms of the number of questions, but also in terms of the time it takes to formulate a response to those questions.
While many Likert-scale type questions require only a minute or two to complete, open-ended questions can take considerably more time. Moreover, open-ended questions require the respondent to do more than just think about how they feel with regard to the question prompt — they must also devote time to crafting a coherent response. As a general rule, there should be an inverse relationship in a questionnaire between the number of open-ended questions utilized and the total number of questions featured in the questionnaire.
Questionnaire format: The different formats available to a researcher often come with expectations about time required on the part of respondents. Focus groups or interviews, for example, often take at least 30 minutes to complete. She ranked difficulty on a variety of conditions, such as ratings easy versus rankings difficult and agree or disagree easy versus pick one statement difficult. These conditions helped her construct surveys in varying levels of difficulty, which then elicited the following results:.
As you can see, survey difficulty, and not just length, affected completion rates. One can presume that it's the difficulty of a survey that causes abandonment more so than length, since a survey of 24 easy questions has an 89 percent completion rate, while a survey of 24 difficult questions has an 82 percent completion rate.
Keeping this in mind, it might be better to simplify your survey before cutting its length. As shown in the SurveyMonkey research, it's better to maintain a survey with less than 30 questions.
This way, you can incorporate some difficult questions among your easier ones to garner more interesting insights without having a large impact on your completion rate. Now that you know how long your survey should be, it's time to decide on survey questions. Originally published Sep 16, AM, updated June 15 Logo - Full Color. Contact Sales. Overview of all products. Marketing Hub Marketing automation software.
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Service 4 min read. Survey Length In general, when there are more survey questions, participants answer quicker than they would with shorter surveys. You'll find something. Sign up Log in. Survey Science How much time are respondents willing to spend on your survey?
Brent Chudoba 3 min read. How long will your survey take? Just preview your survey to see what it is. Find out. What we analyzed:. What we learned:. What this means for you:. You might also like. SurveyMonkey Partner Listening to your customers around the globe—and overcoming challenges. Guest Post 5 min read.
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