Viewing participation

Viewership participation is the average usage of the evaluation element. It is calculated on an individual person basis as the ratio of the usage duration to the duration of the evaluation element. The calculation of the average viewership participation of an evaluation element with more than one part, or multiple evaluation elements of different lengths, is only permitted when considering length weighting. The sum of viewership participations is to be labeled as "contact sum."

In cumulative counts and other special analyses, the calculation is referred to as (cumulative) net viewership participation.