Click here to access the current Reporting Differences in Nielsen Audio Currency Services.
The Tapscan application derives all of the audience estimates included in its reports with a population estimate that reflects the unrounded sum of the weights for the applicable demographic group. This method of determining population is different than the method used in the Nielsen Radio Market Report service. As such, Tapscan population and audience estimates may differ from the estimates reported in the Nielsen Radio Market Report service. The Tapscan application also uses this ‘unrounded sum of weights’ method when determining audience estimates for demographic categories that it reports in Tapscan but not in the Nielsen Radio Market Report service. The Tapscan application does not, however, compute a unique set of population estimates or respondent weights for reports in which the user specified a custom geography.