Public Policy Polling (PPP) yog ib lub chaw pov ntawv xaiv tsa hauv tebchaws Meskas nyob hauv Raleigh, North Carolina. PPP tau tsim nyob rau xyoo 2001 los ntawm tus neeg lag luam Dean Debnam, lub tuam txhab tam sim no tus thawj tswj hwm thiab tus thawj coj ua haujlwm.
Leej twg hloov pauv kev tshawb fawb pov npav?
Hloov Kev Tshawb Fawb yog lub chaw xaiv tsa nyob hauv San Francisco Bay Area. Nws tau xub koom ua ib lub koom haum pab pej xeem thaum Lub Xya Hli 2017 los ntawm Mike Greenfield, yav dhau los tus kws tshawb fawb cov ntaub ntawv ntawm PayPal thiab LinkedIn, thiab Pat Reilly, tus qub Democratic Party kev sib tw ua haujlwm.
Leej twg khiav Survey USA?
SurveyUSA yog tswv los ntawm Hypotenuse, Inc., ib lub tuam txhab ntiag tug tuav hauv New Jersey. Raws li lub Kaum Ib Hlis 2019, lub vev xaib tsom xam lub vev xaib FiveThirtyEight, coj los ntawm tus kws txheeb cais Nate Silver, muaj 790 SurveyUSA kev xaiv tsa hauv nws cov ntaub ntawv, thiab muab SurveyUSA qib "A" raws li nws cov keeb kwm raug thiab cov txheej txheem.
Leej twg pib kev xaiv tsa pej xeem?
Kev xaiv tsa xyoo 1824 ntawm John Quincy Adams (L) thiab Andrew Jackson (R) feem ntau suav tias yog thawj qhov kev xaiv tsa kev xav tau ua. Credit Harvard Art Tsev khaws puav pheej / Wikimedia Commons. Thawj qhov piv txwv ntawm qhov peb tam sim no hu ua kev xaiv tsa kev xav feem ntau suav tias tau muaj nyob rau lub Xya Hli 1824.
Lub tuam txhab twg ua pov thawj?
USA
- Elway Research.
- Field Research Corporation (Field Poll) - saib Mervin Field.
- Gallup Poll.
- Harris Sib tham sib.
- Lub koom haum Marist rau pej xeem kev xav.
- Monmouth University Polling Institute.
- NORC ntawm University of Chicago (yav tas los National Opinion Research Center)
- Nielsen ratings.
