of the oversampling mentioned in the Podesta emails released by Wikileaks:
https://wikileaks.org/podesta-emails/emailid/26551
Hey, when can we meet? I also want to get your Atlas folks to recommend oversamples for our polling before we start in February. By market, regions, etc. I want to get this all compiled into one set of recommendations so we can maximize what we get out of our media polling.
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New Podesta Email Exposes Playbook For Rigging Polls Through "Oversamples"
http://www.zerohedge.com/news/2016-10-23/new-podesta-email-exposes-dem-playbook-rigging-polls-through-oversamples
Earlier this morning we wrote about the obvious sampling bias in the latest ABC / Washington Post poll that showed a 12-point national advantage for Hillary. Like many of the recent polls from Reuters, ABC and The Washington Post, this latest poll included a 9-point sampling bias toward registered democrats.
"METHODOLOGY – This ABC News poll was conducted by landline and cellular telephone Oct. 20-22, 2016, in English and Spanish, among a random national sample of 874 likely voters. Results have a margin of sampling error of 3.5 points, including the design effect. Partisan divisions are 36-27-31 percent, Democrats - Republicans - Independents."
Of course, while democrats may enjoy a slight registration advantage of a couple of points, it is nowhere near the 9 points reflected in this latest poll. ...
Edited by JeffB at 11:14:31 on 11/04/16