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McGruff Takes a Bite Out of Crime Pt. 1
Decoder Ring
What Does It Mean for a PSA to Work?
Joseph Capella is an emeritus professor at the University of Pennsylvania who studies messaging in politics and public health. He says before a PSA can have any effect at all, positive or otherwise, people have to see it. A million people took the time to write in and request the pamphlets he mentions at the end of every ad.
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