A Arbitron acaba de anunciar que alargou a sua amostra de diários de 100 mil para 125 mil!!!
«Arbitron will boost the sample size of its RADAR network radio ratings service by twenty-five percent from 100,000 diarykeepers to 125,000 diarykeepers.
Starting with the release of RADAR 89 this month, more than 6,000 diaries were added to the sample of the most current quarter of the RADAR report, going from the current sample size of 100,000 diaries to 106,299 diaries. By the release of RADAR 92 in March 2007, the RADAR radio network service will be based on an annual sample size of 125,000 diarykeepers.» (fonte: Arbitron Increases RADAR Sample Size By 25%, Radio Ink, 19/6/06)
Ou seja, o PPM vai demorar muito até substituir os diários?
Nem de propósito: «The showdown comes as the industry has decided that the old diary system is an antiquated, unreliable embarrassment. Spurring the desire for change is the lackluster growth in radio advertising revenue, along with competition from advertising media like the Internet, which can show exactly how many people visited various Web sites and how long they stayed. "We're in an electronic age," says Joel Hollander, chairman and chief executive of CBS Radio. "We need more instantaneous measurement."
Radio companies say they could win a bigger chunk of ad dollars if they could prove exactly how much people listen to the radio. Arbitron's solution is the People Meter, a small device that clips onto a belt loop or slides into a purse. It automatically detects what stations its wearers are tuned in to and beams back that information to the number crunchers» (fonte: «Radio Stations, Arbitron Clash
Over How to Tally Listeners», WSJ.com, SARAH MCBRIDE, June 19, 2006; Page B1), via Clube de Jornalistas
