This fall the Canadian radio industry will undergo an important change in its audience measurement methodology. Previously audiences were measured by handwritten diaries. Now radio measurement has moved to the digital age with PPM’s (portable people meters). A PPM is an electronic device which panelists wear or carry. It works by capturing an inaudible code unique to a particular station. While PPM’s will be used for radio measurement initially, they will soon be used to measure TV in Canada as well.
While the initial equipment investment is high, there are many advantages to PPM technology.
· measures exposure rather than recall - doesn’t rely on respondent’s memory
· captures listening/viewing happening outside the home (e.g., radio in the car, sports on TV at local pub)
· passivity makes it much easier to recruit panelists
· data captured 52 weeks per year, 24 hours per day at 1 minute intervals rather than 32 weeks per year at 15 minute intervals
What is the predicted impact on measurement? Compared to the old radio measurement system, we can expect:
· more radio listening hours overall
· up to double the radio stations per listener
· a decrease in time spent listening per station
· higher listening reported among men and younger demos
· more stable listening across the day
· listening peaks during breaking news and sports events
The most important difference for media buyers is that different measurement methodologies yield different measurement results. The results based on diary and PPM are difficult to compare as the diary is based on recall while the PPM is based on real-time exposure to radio.
One way of looking at it is:
· 100 km/hour = 62 miles/hour
· 0 degrees Celsius = 32 degrees Fahrenheit
· Therefore, 1 diary GRP ≠ 1 PPM GRP
It is important to note that the audience size is not actually changing. The way it is being reported will be different than we are used to. Initially zig will work with conversion tables from tests using the new system to ensure that our spots are heard at the same level they were before the conversion. The learning we have from major radio markets undergoing the change this fall will help us when the change is implemented with TV in the future.
Sources: BBM Canada, CBS Radio Québec