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NAEP Analysis and Scaling → Estimation of Population and Student Group Distributions → Examining the Population-Structure Models Used in NAEP → Proportion of Scale Score Variance Accounted for by the Population-Structure Models → Proportion of scale score variance accounted for by the population Structure Model, Grade 8 Mathematics State Assessment, By Scale and Jurisdiction: 2009

NAEP Technical DocumentationProportion of scale score variance accounted for by the population structure model, grade 8 mathematics state assessment, by scale and jurisdiction: 2009
Jurisdiction Number of principal components Proportion1 of scale score variance accounted for by the population-structure model
Number properties and operations Measurement Geometry Data analysis, statistics, and probability Algebra
1 (Total Variance – Residual Variance)/Total Variance, where Total Variance consists of both sampling and measurement error variance.
2 Department of Defense Education Activity.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Mathematics State Assessment.
Alabama 258 0.68 0.71 0.66 0.71 0.72
Alaska 161 0.49 0.49 0.44 0.57 0.50
Arizona 362 0.74 0.75 0.70 0.76 0.75
Arkansas 300 0.74 0.72 0.73 0.75 0.73
California 362 0.70 0.71 0.69 0.75 0.75
Colorado 306 0.76 0.74 0.72 0.77 0.75
Connecticut 287 0.75 0.75 0.76 0.76 0.80
Delaware 241 0.69 0.68 0.68 0.70 0.73
Florida 336 0.70 0.68 0.66 0.71 0.71
Georgia 306 0.66 0.69 0.71 0.69 0.71
Hawaii 254 0.68 0.64 0.66 0.70 0.71
Idaho 303 0.67 0.66 0.69 0.69 0.70
Illinois 312 0.69 0.71 0.70 0.70 0.72
Indiana 278 0.65 0.65 0.59 0.67 0.68
Iowa 282 0.71 0.72 0.70 0.75 0.75
Kansas 307 0.70 0.66 0.63 0.70 0.72
Kentucky 282 0.61 0.62 0.59 0.61 0.61
Louisiana 280 0.74 0.74 0.70 0.77 0.74
Maine 286 0.66 0.67 0.67 0.67 0.69
Maryland 290 0.73 0.75 0.73 0.74 0.74
Massachusetts 302 0.71 0.71 0.71 0.75 0.76
Michigan 291 0.69 0.71 0.71 0.69 0.75
Minnesota 316 0.70 0.69 0.69 0.70 0.70
Mississippi 259 0.62 0.66 0.68 0.72 0.69
Missouri 277 0.67 0.72 0.66 0.69 0.74
Montana 316 0.73 0.71 0.70 0.74 0.73
Nebraska 276 0.70 0.73 0.68 0.74 0.76
Nevada 303 0.68 0.70 0.68 0.75 0.75
New Hampshire 259 0.69 0.68 0.68 0.66 0.71
New Jersey 296 0.72 0.74 0.68 0.74 0.75
New Mexico 332 0.71 0.74 0.69 0.77 0.77
New York 323 0.71 0.73 0.70 0.75 0.75
North Carolina 364 0.72 0.73 0.67 0.76 0.76
North Dakota 275 0.67 0.66 0.66 0.74 0.69
Ohio 289 0.68 0.70 0.67 0.74 0.72
Oklahoma 354 0.71 0.70 0.70 0.73 0.75
Oregon 328 0.71 0.68 0.70 0.73 0.76
Pennsylvania 305 0.73 0.71 0.68 0.73 0.74
Rhode Island 249 0.70 0.69 0.66 0.73 0.72
South Carolina 295 0.67 0.68 0.70 0.73 0.74
South Dakota 308 0.69 0.68 0.69 0.73 0.74
Tennessee 268 0.62 0.67 0.64 0.70 0.71
Texas 326 0.73 0.69 0.70 0.72 0.76
Utah 328 0.69 0.69 0.71 0.76 0.75
Vermont 262 0.66 0.66 0.65 0.69 0.71
Virginia 308 0.73 0.75 0.75 0.77 0.79
Washington 330 0.74 0.72 0.73 0.71 0.77
West Virginia 269 0.63 0.64 0.61 0.66 0.65
Wisconsin 304 0.72 0.72 0.66 0.74 0.76
Wyoming 241 0.66 0.68 0.64 0.69 0.69
Other jurisdictions
District of Columbia 192 0.71 0.72 0.69 0.67 0.71
DoDEA2 215 0.68 0.68 0.68 0.77 0.74
Last updated 05 January 2016 (GF)
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