The UK reach and frequency model.

Steve Wilcox and Sue Gray

RAJAR, the new joint industry measurement system for UK radio, was launched in 1993. As in the past, the RAJAR survey uses a one-week self-completion diary and a model is required to estimate station or schedule reach beyond seven days.

The UK reach and frequency model.

Sue GrayBartle, Bogle and Hegarty, United Kingdom andSteve WilcoxRSMB Television Research Ltd., United Kingdom

1. INTRODUCTION AND OBJECTIVES

RAJAR, the new joint industry measurement system for UK radio, was launched in 1993. The research is based upon the largest sample of any media study in the UK with 150,000 individuals a year. This gives advertisers and their agencies the ability to analyse very specific target markets.

As in the past, the RAJAR survey uses a one-week self-completion diary. This has proved to be optimum for the representative measurement of...

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