NAEP Weighting Procedures - Poststratification Adjustments, Grade 4 Geography National Main Assessment (Accommodations Not Permitted [R2]): 2001

Poststratification adjustments, grade 4 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 9	0.938	400,461	427,056
2	Black	All U.S.	Not age 9	1.221	214,629	175,749
3	Hispanic	All U.S.	Age 9	0.759	457,954	603,539
4	Hispanic	All U.S.	Not age 9	1.024	211,304	206,265
5	Other race/ethnicity	All U.S.	Age 9	0.785	157,982	201,265
6	Other race/ethnicity	All U.S.	Not age 9	1.006	63,787	63,407
7	Non-Hispanic White	Northeast Census reg	Age 9	1.224	407,644	333,091
8	Non-Hispanic White	Northeast Census reg	Not age 9	1.436	133,859	93,220
9	Non-Hispanic White	Midwest Census reg	Age 9	1.078	511,092	473,997
10	Non-Hispanic White	Midwest Census reg	Not age 9	1.439	221,672	154,062
11	Non-Hispanic White	South Census reg	Age 9	1.079	592,797	549,431
12	Non-Hispanic White	South Census reg	Not age 9	1.503	239,405	159,281
13	Non-Hispanic White	West Census reg	Age 9	1.242	380,061	306,101
14	Non-Hispanic White	West Census reg	Not age 9	1.209	111,455	92,181
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2001 Geography Assessment.