Is PPM affecting Urban/Urban AC stations disproportionately

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radiodr1
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Joined: Thu Feb 12, 2009 2:02 am

Is PPM affecting Urban/Urban AC stations disproportionately

Post by radiodr1 » Tue Mar 09, 2010 10:53 am

PPM methodology showed some deficiencies in the recruitment, retention and participation of the sample panels and these deficiencies have resulted in a significant under-representation of younger listeners.

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