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D uration (Lead-in) Edit

Rationale Lead-in edit allows for acquisition time and joins gaps in detection Presence of gaps and impact of edit rules roughly twice as large for radio (higher percentage of B and C codes is also evidence supporting greater detection difficulty).

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D uration (Lead-in) Edit

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  1. Rationale Lead-in edit allows for acquisition time and joins gaps in detection Presence of gaps and impact of edit rules roughly twice as large for radio (higher percentage of B and C codes is also evidence supporting greater detection difficulty) Lower radio code detection rates likely due to more complex audio environments - radio is more likely to be secondary activity; more likely to take place outside the home; more likely played at low volume Duration (Lead-in) Edit

  2. Duration (Lead-in) Edit • How do the PPM duration edits compare to other media edit rules? Arbitron Radio Diary 90 minutes Arbitron TV Diary* 30-120 minutes NMR A/P People Meter 42 minute prompt** PPM-TV 0.5 minute PPM-Radio 0.5-1.0 minute *As of 1993. **Open-ended credit

  3. Duration (Lead-in) Edit • Examples 8:27:00 AM 8:27:30 AM 6 749e 8:28:00 AM 8 da46 WIYY-FM da46 Exact Match 8:28:00 AM 8 da46 WIYY-FM da46 Exact Match 8:28:30 AM 8 da46 WIYY-FM da46 Exact Match 8:29:00 AM 8:29:30 AM 8:30:00 AM 8:30:30 AM 8:31:00 AM 8 da46 WIYY-FM da46 Exact Match 8:31:30 AM 8 da46 WIYY-FM da46 Exact Match 8:32:00 AM 8 da46 WIYY-FM da46 Exact Match 8:32:30 AM

  4. Duration (Lead-in) Edit • Examples 8:27:00 AM 8:27:30 AM 6 749e 8:28:00 AM 8 da46 WIYY-FM da46 Exact Match 8:28:00 AM Up to 60-second Duration (Lead-in) Edit applied 8 da46 WIYY-FM da46 Exact Match 8:28:30 AM 8 da46 WIYY-FM da46 Exact Match 8:29:00 AM 8:29:30 AM 8:30:00 AM 8:30:30 AM 8:31:00 AM 8 da46 WIYY-FM da46 Exact Match 8:31:30 AM 8 da46 WIYY-FM da46 Exact Match 8:32:00 AM 8 da46 WIYY-FM da46 Exact Match 8:32:30 AM

  5. Duration (Lead-in) Edit • Examples 12:50:00 PM 12:50:30 PM 12:51:00 PM 6 da46 WIYY-FM da46 Exact Match 12:51:30 PM Up to 60-second Duration (Lead-in) Edit applied 8 da46 WIYY-FM da46 Exact Match 12:52:00 PM 12:52:30 PM 8 3c56 WBAL-AM 3c56 Exact Match 12:53:00 PM 12:53:30 PM 12:54:00 PM 8 3c56 WBAL-AM 3c56 Exact Match 12:54:30 PM 8 3c56 WBAL-AM 3c56 Exact Match 12:55:00 PM 12:55:30 PM 8 3c56 WBAL-AM 3c56 Exact Match 12:56:00 PM 12:56:30 PM

  6. Minute Crediting • Rule • Any exposure within a clock minute credits that entire clock minute to the outlet.

  7. Minute Crediting • Examples 10:19:00 PM 10:19:30 PM 10:20:00 PM 8 da46 WIYY-FM da46 Exact Match 10:20:30 PM Up to 60-second Duration (Lead-in) Edit applied 8 da46 WIYY-FM da46 Exact Match 10:21:00 PM 8 da46 WIYY-FM da46 Exact Match 10:21:30 PM 10:22:00 PM

  8. Minute Crediting • Examples Floor / Ceiling episode start and end times to the nearest whole minute 10:19:00 PM 10:19:30 PM 10:20:00 PM 8 da46 WIYY-FM da46 Exact Match 10:20:30 PM Up to 60-second Duration (Lead-in) Edit applied 8 da46 WIYY-FM da46 Exact Match 10:21:00 PM 8 da46 WIYY-FM da46 Exact Match 10:21:30 PM 10:22:00 PM Floor / Ceiling episode start and end times to the nearest whole minute

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