Stop people from submitting a Google Form more than once
This article explains how to stop more than one person providing a response to a questionnaire that you have made using Google Forms. Previously I've shown how to use Google Forms to put a survey or questionnaire into your blog . Sometimes when you put a form into a blog-post, it is OK for people to respond more than once - and Forms even has an option to submit another entry immediately. But sometimes it's not. For example, if you are researching a particular topic, you probably want each person's opinion to count once, rather than having an enthusiastic person (effectively a human bot) enter their responses many times and so bias your results. Google Forms has now a feature which lets you require everyone who wants to submit results to your survey to be logged in to a Google account , and then only lets each Google Account submit the form once . How to stop people submitting a Google Form more than once Follow these steps to stop the same user entering a form multiple t...