Weighting

The panel households are distributed across Germany, with at least 213 representative TV households available in each federal state. This ensures that there are sufficient households in even smaller federal states, enabling the inclusion of local TV providers.

The associated disproportionate distribution of households in the federal states is balanced out through daily weighting.

The non-TV households in the AGF panel are distributed across the four regions: North, South, East, and West, due to the lower number of cases.

The weighting process occurs in two steps:

• The preliminary weighting is performed daily, after GfK has transmitted and verified the data retrieved during the night.
• The final weighting is done eight days later, when the additional households retrieved during this period are incorporated, and the preliminary weighting factors are replaced by the final factors. Additionally, time-shifted usage from the past three days is taken into account.

The weighting process ensures precise extrapolation to all TV and video households and all individuals age 3 or over living in them throughout Germany.