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Table 11. Difference between the estimated NAEP scale equivalents of state proficiency standards for mathematics at grade 8, by state: 2009 and 2007

State/jurisdiction 2009 NAEP scale equivalent 2007 NAEP scale equivalent Change from
2007 NAEP
scale equivalent
Standard error of the difference 2007 and 2009 tests are comparable1
Alabama 246 253 -6.7 * 2.59 Yes
Alaska 268 265 3.3 2.62 Yes
Arizona 266 268 -1.7 1.30 Yes
Arkansas 267 277 -9.5 * 1.74 Yes
California   No
Colorado 256 259 -2.7 1.97 Yes
Connecticut 251 252 -1.1 2.69 Yes
Delaware 269 272 -3.3 * 1.17 Yes
District of Columbia 258 Yes
Florida 266 266 -0.6   1.46 Yes
Georgia 247 243 4.0 2.11 No
Hawaii 286 294 -8.0 * 1.51 Yes
Idaho 261 265 -3.5 * 1.67 Yes
Illinois 251 251 0.4 1.82 No
Indiana 273 266 6.7 * 2.17 No
Iowa 263 264 -1.4 1.92 Yes
Kansas 265 270 -5.2 * 2.26 Yes
Kentucky 273 279 -5.8 * 1.24 Yes
Louisiana 263 267 -3.9 * 1.43 Yes
Maine 284 286 -1.6   1.20 Yes
Maryland 271 278 -6.8 * 2.65 Yes
Massachusetts 300 302 -2.2 1.60 Yes
Michigan 253 260 -7.3 * 2.02 Yes
Minnesota 287 286 0.8 1.10 Yes
Mississippi 264 262 1.5   1.34 No
Missouri 287 289 -1.7 1.52 Yes
Montana 285 281 3.4 1.88 Yes
Nebraska Yes
Nevada 269 267 2.4 1.79 Yes
New Hampshire 281 282 -1.2   1.16 Yes
New Jersey 272 272 -0.2 1.36 No
New Mexico 277 285 -8.3 * 1.71 Yes
New York 249 273 -23.5 * 2.15 Yes
North Carolina 253 270 -17.0 * 1.80 Yes
North Dakota 278 279 -0.6   1.24 Yes
Ohio 265 265 0.3 1.59 Yes
Oklahoma 269 249 19.8 * 1.53 No
Oregon 266 262 3.5 * 1.59 Yes
Pennsylvania 272 271 0.9 1.79 Yes
Rhode Island 275 279 -4.2 * 1.22 Yes
South Carolina 270 312 -42.4 * 1.80 No
South Dakota 271 271 0.8 0.90 Yes
Tennessee 229 234 -5.3 2.92 Yes
Texas 254 268 -13.8 * 1.65 Yes
Utah 275 256 19.2 * 1.63 Yes
Vermont 282 284 -1.4 1.17 Yes
Virginia 251 259 -7.7 * 2.31 Yes
Washington 288 286 2.2 1.44 Yes
West Virginia 270 253 16.5 * 1.23 No
Wisconsin 262 262 -0.3 2.28 Yes
Wyoming 278 279 -1.5   1.17 Yes
– State assessment data not available.
† Not applicable.
* Statistically significant at p<.05.
1 State 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 2b.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2007 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 (EP)
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