New Nielsen Online GRP Model

GRPs have been used successfully for TV planning and measuring since the 50s and have had little adaptation, or application outside of broadcast since first implemented. The basis of a GRP, is a calculation of the estimated reach times the frequency. GRPs are used as a planning tool when purchasing TV activity and can give an indication of the weight of activity (thereby some form of measurement). However, GRPs are a currency which aid planners and are not a true reflection of reach. In addition, it helps to assess the value of buying activity, i.e. we look at actual and planned GRPs, to see what was achieved vs. what was planned.

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