Probability method	Quasi-probability birthday methods				Nonprobability–In household methods			Nonprobability–At home methods
	R-B-P	Most recent	MultiQ Most recent	Last	Next	Youngest adult	Youngest male/ Youngest female	MultiQ Youngest male/Youngest female	Youngest male/Youngest female	MultiQ Youngest male/Youngest female	Youngest male/Oldest female
Approve Obama	42.8%	43.4%	42.5%	39.6%	40.5%	42.0%	43.2%	42.3%	41.9%	42.5%	44.0%
Disapprove Obama	51.3%	51.1%	51.1%	54.9%	54.1%	52.2%	50.0%	52.3%	51.4%	50.9%	49.9%
Republican	26.1%	26.5%	25.6%	29.3%	28.5%	29.4%	25.7%	28.0%	26.7%	28.7%	27.6%
Democrat	33.1%	30.6%	32.7%	28.0%	30.3%	30.0%	30.1%	29.9%	31.1%	29.4%	29.4%
Independent	37.1%	39.3%	37.5%	38.5%	37.0%	36.0%	40.2%	36.9%	37.0%	37.3%	38.0%
N	1,002	1,001	998	1,000	1,001	999	1,000	1,000	999	999	1,000