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Table 7. Difference between the estimated NAEP scale equivalents of state proficiency standards for mathematics at grade 8, by state: 2009 and 2005

State/jurisdiction 2009 NAEP scale equivalent 2005 NAEP scale equivalent Change from
2005 NAEP
scale equivalent
Standard error of the difference 2005 and 2009 tests are comparable 1
Alabama 246   Yes
Alaska 268 268 0.4 2.60 Yes
Arizona 266 265 1.0 1.21 Yes
Arkansas 267 288 -20.5 * 1.32 Yes
California   No
Colorado 256 258 -1.5 2.28 Yes
Connecticut 251 257 -5.7 * 2.39 No
Delaware 269 275 -6.5 * 1.17 No
District of Columbia 258 No
Florida 266 269 -3.6 * 1.59 Yes
Georgia 247 255 -7.7 * 1.58 No
Hawaii 286 296 -10.1 * 1.76 No
Idaho 261 266 -4.3 * 1.92 No
Illinois 251 276 -24.8 * 1.86 No
Indiana 273 266 7.4 * 1.74 No
Iowa 263 262 0.5 1.78 Yes
Kansas 265 No
Kentucky 273 285 -12.1 * 1.53 No
Louisiana 263 264 -1.2 1.10 Yes
Maine 284 300 -15.4 * 1.42 No
Maryland 271 276 -4.9 * 2.49 Yes
Massachusetts 300 301 -0.5 1.57 No
Michigan 253 269 -15.7 * 1.92 No
Minnesota 287 No
Mississippi 264 262 2.0   1.70 No
Missouri 287 311 -23.9 * 1.62 No
Montana 285 271 13.8 * 1.44 No
Nebraska No
Nevada 269 271 -1.3 1.95 Yes
New Hampshire 281   No
New Jersey 272 273 -1.1 1.56 No
New Mexico 277 287 -9.6 * 2.14 Yes
New York 249 275 -26.0 * 2.01 No
North Carolina 253 247 5.7 * 1.94 No
North Dakota 278 277 1.5   1.26 Yes
Ohio 265 274 -8.9 * 1.60 Yes
Oklahoma 269 258 10.9 * 1.28 No
Oregon 266 269 -3.4 * 1.58 No
Pennsylvania 272 272 0.1 1.61 Yes
Rhode Island 275   Yes
South Carolina 270 305 -35.6 * 1.42 No
South Dakota 271   Yes
Tennessee 229 230 -1.0 2.32 Yes
Texas 254 272 -18.0 * 1.42 Yes
Utah 275   Yes
Vermont 282 Yes
Virginia 251 253 -1.6 1.94 No
Washington 288 No
West Virginia 270 253 16.8 * 1.13 No
Wisconsin 262 263 -1.8 1.93 Yes
Wyoming 278 293 -14.9 * 1.35 No
– State assessment data not available.
† Not applicable.
* Statistically significant at p<.05.
1State assessment is comparable between years when state confirmed making no substantive changes in the assessment.
NOTE: Differences are computed using unrounded numbers. Standard errors of the NAEP scale equivalents are listed in Table 1b and Table 3b.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2005 and 2009 Mathematics Assessments. U.S. Department of Education, Office of Planning, Evaluation and Policy Development, EDFacts SY 2008–09, Washington, DC, 2010. The National Longitudinal School-Level State Assessment Score Database (NLSLSASD) 2010.

Last updated 05 August 2011 (AA)
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National Center for Education Statistics - http://nces.ed.gov
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