Is Radio ready for biggest change to survey methodology in 70 years?
GfK’s Dr Morten Boyer tells Peter Saxon: Yes.
From next July, in either metro Survey 4 or 5, two new elements will be introduced to…
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Is Radio ready for biggest change to survey methodology in 70 years?
GfK’s Dr Morten Boyer tells Peter Saxon: Yes.
From next July, in either metro Survey 4 or 5, two new elements will be introduced to…
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