NAEP Weighting Procedures - Poststratification Adjustments, Grade 8 Geography National Main Assessment (Accommodations Not Permitted [R2]): 2001

Poststratification adjustments, grade 8 geography national main assessment (accommodations not permitted [R2]): 2001
PS cell	Race/ethnicity	Region	Age group	Poststratification adjustment	Control total	Sum of pre-post weights
1	Black	All U.S.	Age 13	0.970	336,238	346,618
2	Black	All U.S.	Not age 13	1.390	218,494	157,186
3	Hispanic	All U.S.	Age 13	0.717	342,244	477,394
4	Hispanic	All U.S.	Not age 13	1.234	232,430	188,290
5	Other race/ethnicity	All U.S.	Age 13	1.031	143,239	138,890
6	Other race/ethnicity	All U.S.	Not age 13	1.280	76,168	59,490
7	Non-Hispanic White	Northeast Census reg	Age 13	0.945	374,844	396,637
8	Non-Hispanic White	Northeast Census reg	Not age 13	1.083	154,677	142,789
9	Non-Hispanic White	Midwest Census reg	Age 13	1.066	515,457	483,625
10	Non-Hispanic White	Midwest Census reg	Not age 13	1.417	270,133	190,579
11	Non-Hispanic White	South Census reg	Age 13	0.991	508,345	512,959
12	Non-Hispanic White	South Census reg	Not age 13	1.395	273,608	196,196
13	Non-Hispanic White	West Census reg	Age 13	1.475	362,144	245,463
14	Non-Hispanic White	West Census reg	Not age 13	1.579	112,957	71,548
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2001 Geography Assessment.