GFK says more testing is needed before their ratings method is changed

GFK is rethinking how Australia’s radio ratings are measured, but Managing Director, Morten Boyer, says  he wants to make sure“… we are not led by opinion, but we are taking a more scientific approach and following the principles of the scientific method.”
 
The GfK method currently uses a diary-based system and he says more testing needs to be conducted before the company can think about rolling out changes to its measurement system.