NAEP Analysis and Scaling- Proportion of Scale Score Variance Accounted for by the Population-Structure Models, by Jurisdiction, Grade 4 Reading Combined National and State Assessment: 2003

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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 Models, Grade 4 Reading Combined National and State Assessment, by Jurisdiction: 2003

NAEP Technical DocumentationProportion of scale score variance accounted for by the population-structure models, by jurisdiction, grade 4 reading combined national and state assessment: 2003
Jurisdiction	Number of principal components	Proportion¹ of scale score variance
Jurisdiction	Number of principal components	Reading for literary experience	Reading to gain information
Alabama	257	0.58	0.59
Alaska	138	0.54	0.52
Arizona	284	0.57	0.59
Arkansas	268	0.59	0.58
California	315	0.52	0.59
Colorado	273	0.56	0.58
Connecticut	266	0.61	0.62
Delaware	257	0.49	0.54
Florida	278	0.54	0.58
Georgia	290	0.53	0.56
Hawaii	314	0.55	0.62
Idaho	261	0.57	0.54
Illinois	290	0.58	0.60
Indiana	256	0.48	0.54
Iowa	257	0.53	0.56
Kansas	267	0.56	0.57
Kentucky	246	0.44	0.45
Louisiana	253	0.59	0.62
Maine	254	0.54	0.51
Maryland	270	0.58	0.58
Massachusetts	289	0.57	0.59
Michigan	269	0.57	0.57
Minnesota	262	0.63	0.64
Mississippi	246	0.49	0.54
Missouri	264	0.52	0.51
Montana	258	0.59	0.58
Nebraska	263	0.54	0.54
Nevada	276	0.55	0.61
New Hampshire	267	0.54	0.55
New Jersey	262	0.54	0.56
New Mexico	284	0.60	0.58
New York	277	0.54	0.55
North Carolina	284	0.55	0.55
North Dakota	260	0.55	0.54
Ohio	266	0.53	0.57
Oklahoma	275	0.58	0.59
Oregon	278	0.51	0.53
Pennsylvania	260	0.58	0.62
Rhode Island	268	0.58	0.58
South Carolina	255	0.49	0.50
South Dakota	258	0.52	0.53
Tennessee	266	0.57	0.55
Texas	274	0.45	0.51
Utah	263	0.57	0.56
Vermont	249	0.49	0.49
Virginia	275	0.55	0.60
Washington	287	0.55	0.55
West Virginia	236	0.44	0.52
Wisconsin	266	0.57	0.57
Wyoming	261	0.55	0.57
Other jurisdictions
District of Columbia	242	0.54	0.59
DDESS²	205	0.59	0.58
DoDDS³	236	0.52	0.53
Virgin Islands	134	0.49	0.49
¹ (Total Variance – Residual Variance)/Total Variance, where Total Variance consists of both sampling and measurement error variance. ² Department of Defense Domestic Dependent Elementary and Secondary Schools. ³ Department of Defense Dependents Schools (Overseas). NOTE: The NAEP reading assessment does not assess the "reading to perform a task" scale at grade 4. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2003 Reading Assessment.

Last updated 13 February 2009 (GF)

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