From A for AGF Videoforschung to Z for zapping, the most important technical terms in video research are explained here.
GRP (Gross Rating Point)
GRP is an acronym that stands for Gross Rating Point. It is calculated as the quotient of the sum of contacts with the included commercial breaks of a campaign divided by the potential in the target group, multiplied by 100. (Alternatively: Average contacts multiplied by the potential market share.) GRP is also referred to as advertising pressure.
A GRP of 120, for example, can mean that 10% of the target group was reached 12 times or 40% of the target group three times. Internal and external overlaps are not taken into account when calculating the GRP.
The CpG indicates the costs per GRP, meaning the costs incurred for a chance of contacting one percent of the target group.