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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 Reading State Assessment, by Subscale and State/Jurisdiction: 2019

​​NAEP Technical DocumentationProportion of Scale Score Variance Accounted for by the Population-Structure Model, Grade 8 Reading State Assessment, by Subscale and State/Jurisdiction: 2019

Proportion of scale score variance accounted for by the population-structure model, grade 8 reading state assessment, by subscale and state/jurisdiction: 2019
State/jurisdictionNumber of principal componentsProportion of scale score variance accounted for by the conditioning model
LiteraryInformational
(Total Variance – Residual Variance) / Total Variance, where Total Variance includes variance accounted and unaccounted for by the variables in the population-structure model.
Excluding the constant term.
U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2019 Reading Assessment.
Alabama225.68.67
Alaska120.51.54
Arizona235.66.72
Arkansas241.70.70
California264.68.72
Colorado170.47.52
Connecticut235.67.74
Delaware207.64.67
Florida289.65.62
Georgia266.65.67
Hawaii205.70.67
Idaho236.69.74
Illinois274.66.70
Indiana236.65.68
Iowa243.69.70
Kansas243.69.72
Kentucky244.63.64
Louisiana233.62.68
Maine234.66.68
Maryland252.66.73
Massachusetts242.72.73
Michigan239.67.64
Minnesota233.72.73
Mississippi232.64.69
Missouri253.70.69
Montana170.60.62
Nebraska238.74.71
Nevada242.63.69
New Hampshire113.39.44
New Jersey254.68.68
New Mexico247.64.67
New York257.65.67
North Carolina277.68.69
North Dakota209.72.71
Ohio248.66.71
Oklahoma242.74.73
Oregon244.70.71
Pennsylvania256.69.71
Rhode Island209.68.69
South Carolina248.63.68
South Dakota104.48.45
Tennessee249.63.66
Texas280.66.73
Utah202.65.61
Vermont221.63.68
Virginia256.73.73
Washington250.72.78
West Virginia231.68.70
Wisconsin256.67.72
Wyoming209.66.69
Other jurisdictions
District of Columbia181.67.74
DoDEA189.63.65
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Last updated 05 October 2023 (SK)
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