Harker Research Writes Nielsen's PPM Reliability Is 'Crumbling'
May 8, 2015 at 6:59 AM (PT)
In their latest post on their Radio Insights blog, HARKER RESEARCH continues to hammer away at PPM’s ability to successful capture listening. They write, "With the facade of NIELSEN’s PPM reliability crumbling, it’s time to question the accuracy of other NIELSEN claims."
"A big selling point of PPM was granularity, the ability to see a station’s ratings performance down to the minute," notes HARKER. "But if the encoding/decoding process is faulty, if there are drop-outs and lost listening because of encoding or decoding failures, how can PPM be accurate down to the minute? Take a look at the image below provided by a station. This is a screen capture of one hour of the morning show’s encoding as displayed by VOLTAIR. This is not a dummied-up brochure shot. This is a photo of an actual broadcast and how PPM encoded the hour’s broadcast."
HARKER continues, "It shows the effective level of encoding in one-minute intervals through the 7a hour. Green means there is a high probability that the decoder will be successful identifying the radio station -- assuming a favorable listening environment. Yellow indicates a lower probability of success, and red means a low probability of success. VOLTAIR enables one to simulate different listening environments, and in this case the assumption is that listening is in a fairly quiet environment. In other words, this is a best-case scenario, not a typical real-life 7a environment."