NAEP Weighting Procedures - Poststratification Adjustments, Grade 4 Geography National Main Assessment (Accommodations Permitted [R3]): 2001

NAEP Technical DocumentationPoststratification adjustments, grade 4 geography national main assessment (accommodations permitted [R3]): 2001
PS cell	Race/ethnicity	Region	Age group	Poststratification adjustment	Control total	Sum of pre-post weights
1	Black	All U.S.	Age 9	0.963	400,461	415,768
2	Black	All U.S.	Not age 9	1.243	214,629	172,630
3	Hispanic	All U.S.	Age 9	0.723	457,954	633,521
4	Hispanic	All U.S.	Not age 9	1.018	211,304	207,500
5	Other race/ethnicity	All U.S.	Age 9	0.870	157,982	181,657
6	Other race/ethnicity	All U.S.	Not age 9	0.928	63,787	68,774
7	Non-Hispanic White	Northeast Census reg	Age 9	1.227	407,644	332,279
8	Non-Hispanic White	Northeast Census reg	Not age 9	1.191	133,859	112,392
9	Non-Hispanic White	Midwest Census reg	Age 9	1.096	511,092	466,268
10	Non-Hispanic White	Midwest Census reg	Not age 9	1.310	221,672	169,216
11	Non-Hispanic White	South Census reg	Age 9	1.108	592,797	535,018
12	Non-Hispanic White	South Census reg	Not age 9	1.335	239,405	179,326
13	Non-Hispanic White	West Census reg	Age 9	1.128	380,061	336,850
14	Non-Hispanic White	West Census reg	Not age 9	1.301	111,455	85,668
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2001 Geography Assessment.

Last updated 19 August 2008 (DR)