Table of Contents | Search Technical Documentation | References

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: 2022

​​​NAEP Technical DocumentationProportion of Scale Score Variance Accounted for by the Population-Structure Model, Grade 8 Reading State Assessment, by Subscale and State/Jurisdiction: 2022

Proportion of scale score variance accounted for by the population-structure model, grade 8 reading state assessment, by subscale and state/jurisdiction: 2022
State/jurisdictionNumber of principal components and contrast-coded direct covariatesProportion 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), 2022 Reading Assessment.
Alabama267.70.75
Alaska77.52.48
Arizona267.74.71
Arkansas278.71.73
California308.72.72
Colorado99.39.42
Connecticut268.72.74
Delaware252.67.70
Florida329.64.71
Georgia299.73.71
Hawaii254.77.77
Idaho264.69.72
Illinois306.70.76
Indiana273.66.73
Iowa262.73.74
Kansas277.70.75
Kentucky283.69.73
Louisiana269.68.74
Maine270.74.75
Maryland294.72.74
Massachusetts275.74.71
Michigan267.73.74
Minnesota258.77.81
Mississippi271.71.69
Missouri278.73.77
Montana76.30.30
Nebraska269.68.71
Nevada283.71.73
New Hampshire84.30.33
New Jersey294.80.77
New Mexico258.69.69
New York295.72.74
North Carolina308.68.73
North Dakota242.70.73
Ohio281.71.72
Oklahoma276.68.69
Oregon261.73.76
Pennsylvania294.72.76
Rhode Island256.70.70
South Carolina288.74.77
South Dakota75.35.31
Tennessee286.71.71
Texas312.72.77
Utah219.65.64
Vermont245.69.74
Virginia289.77.79
Washington283.71.73
West Virginia268.72.76
Wisconsin281.70.71
Wyoming236.71.70
Other jurisdictions
District of Columbia231.70.76
DoDEA220.66.66
​
Last updated 24 July 2024 (SK)