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NAEP Technical DocumentationParticipation, Exclusion, and Accommodation Rates for Grade 8 Writing (WCBA) for the 2011 Assessment

The following table displays the school- and student-level response, exclusion, and accommodation rates for the grade 8 writing [WCBA] assessment by school type and jurisdiction. Various weights were used in the calculation of the rates, as indicated in the column headings of the table.

The participation rates reflect the participation of the original sample schools only and do not reflect any effect of substitution. The rates weighted by the base weight and enrollment show the approximate proportion of the student population in the jurisdiction that is represented by the responding schools in the sample. The rates weighted by just the base weight show the proportion of the school population that is represented by the responding schools in the sample. These rates differ because schools differ in size.

                                                                               

Participation, exclusion, and accommodation rates, grade 8 writing (WCBA) assessment, by school type and jurisdiction: 2011

School type and jurisdiction	Number of schools in original sample, rounded	School participation rates (percent) before substitution (weighted by base weight and enrollment)	School participation rates (percent) before substitution (weighted by base weight only)	Number of students sampled, rounded	Weighted percent of students excluded	Weighted student participation rates (percent) after makeups	Weighted percent of students accommodated
1 Includes national public, national private, and Bureau of Indian Education schools located in the United States and all Department of Defense Education Activity schools. NOTE: Detail may not sum to totals because of rounding. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2011 Assessment.
All	1,000	97.27	87.29	27,400	1.72	93.99	8.05
National all1	1,000	97.27	87.29	27,400	1.72	93.99	8.05
Northeast all	178	95.36	80.39	4,400	2.08	93.20	11.42
Midwest all	204	98.83	93.61	5,300	1.78	94.19	10.14
South all	400	97.15	86.74	10,700	1.71	94.62	6.48
West all	265	97.43	86.34	7,000	1.38	93.43	5.80
National public	890	99.73	99.86	25,200	1.84	93.99	8.49
National private	157	71.21	68.66	2,200	0.28	93.97	3.01
Catholic	50	95.53	95.23	1,100	0.53	94.72	3.12
Non-Catholic private	107	52.06	56.42	1,100	0.08	93.35	2.92

 

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