For the first time, Vividata provided us with the correct base to use for every one of their survey questions. Historically we did not have access to this information and because of that we had to make an educated guess at which base to apply to each variable based on the wording of the survey question. In some cases we made the correct choice but in other cases we didn’t apply the correct base, which is why you might notice variables whose bases changed from 2018 to 2019.
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