From A for AGF Videoforschung to Z for zapping, the most important technical terms in video research are explained here.


A sample is a random selection from a subset of the universe. The sample used in the AGF Panel is a household sample. It is formed by recruiting one household in each sampling point on the basis of socio-demographic criteria and the type of programming reception for the panel. A disproportional sample is characterized by regional over-coverages or under-coverages. The sample of the AGF Panels is designed to be disproportional in order to also cover smaller states with a sufficient number of cases.

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