ICC (Internal Coincidental Check)

ICC is an acronym that stands for Internal Coincidental Check. It refers to a method for proving reliability, i.e. the correct log-in and log-out of panel participants. To this end, the usage of all household members in a sub-sample of the AGF Panel, which comprises about 1,500 households, is surveyed by way of telephone interviews at different, exactly defined times, the results of which are then compared with the measurement results of these panel households. The ICC is conducted concurrently with the ICC during the survey period.