NAEP Technical DocumentationParticipation, Exclusion, and Accommodation Rates for Grade 8 Mathematics for the 2015 Assessment

The following table displays the school- and student-level response, exclusion, and accommodation rates for the grade 8 mathematics 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 mathematics combined national and state assessment, by school type and jurisdiction: 2015

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
All	7,020	96.00	82.78	165,100	1.51	92.40	12.14
National all 1	6,900	95.97	82.62	159,400	1.52	92.38	12.04
Northeast all	1,120	91.99	77.18	25,300	1.46	90.60	16.49
Midwest all	1,880	97.00	87.15	35,600	1.37	92.79	11.61
South all	2,160	96.83	83.25	57,100	1.78	92.47	12.40
West all	1,690	96.37	80.29	40,100	1.28	93.02	8.91
National public	6,110	99.31	99.40	154,400	1.61	92.24	12.62
Alabama	100	100.00	100.00	2,400	1.02	92.39	5.91
Alaska	120	99.84	95.67	2,400	2.01	89.41	16.82
Arizona	120	100.00	100.00	2,700	1.29	93.93	10.52
Arkansas	100	97.52	98.78	2,700	1.99	93.68	12.75
California	210	100.00	100.00	6,800	1.25	93.56	7.81
Colorado	90	99.00	99.60	2,600	1.29	92.09	10.61
Connecticut	100	100.00	100.00	2,500	1.37	92.64	14.54
Delaware	70	100.00	100.00	2,500	1.75	92.17	14.60
District of Columbia	80	98.88	98.46	2,300	3.34	89.46	19.88
Florida	210	100.00	100.00	6,300	2.20	92.04	16.69
Georgia	110	100.00	100.00	4,200	1.44	93.03	11.16
Hawaii	60	100.00	100.00	2,600	1.79	90.31	9.48
Idaho	100	100.00	100.00	2,700	1.60	94.01	9.43
Illinois	190	100.00	100.00	3,600	0.58	92.94	13.21
Indiana	90	100.00	100.00	2,700	1.35	92.75	14.74
Iowa	110	99.02	98.69	2,600	1.20	93.19	12.06
Kansas	120	100.00	100.00	2,700	1.34	92.14	10.01
Kentucky	120	100.00	100.00	3,600	1.47	92.66	11.47
Louisiana	110	99.54	98.51	2,700	1.54	92.03	16.11
Maine	120	100.00	100.00	2,500	1.28	92.09	15.88
Maryland	140	97.69	97.75	3,500	2.13	91.04	13.98
Massachusetts	130	100.00	100.00	3,600	1.70	91.52	18.21
Michigan	150	100.00	100.00	3,900	1.62	92.87	10.33
Minnesota	140	100.00	100.00	2,900	2.30	92.35	8.51
Mississippi	100	99.08	98.99	2,600	0.63	92.92	8.48
Missouri	110	100.00	100.00	2,400	1.60	93.16	11.15
Montana	160	99.90	97.83	2,600	1.21	91.27	8.31
Nebraska	130	100.00	100.00	2,600	1.97	93.54	11.35
Nevada	90	100.00	100.00	2,700	1.28	92.48	9.86
New Hampshire	90	100.00	100.00	2,600	1.47	91.12	14.60
New Jersey	100	94.11	96.01	2,300	1.47	90.51	17.80
New Mexico	110	100.00	100.00	3,100	1.81	91.12	11.70
New York	140	93.36	94.76	3,200	0.86	87.64	19.93
North Carolina	130	100.00	100.00	3,800	1.20	91.31	14.12
North Dakota	190	99.88	99.44	2,600	2.43	94.06	11.42
Ohio	170	100.00	100.00	3,600	2.12	90.92	15.50
Oklahoma	120	100.00	100.00	2,500	1.54	91.88	14.59
Oregon	120	100.00	100.00	2,600	2.39	91.67	10.64
Pennsylvania	130	100.00	100.00	3,400	2.13	91.89	14.39
Rhode Island	60	100.00	100.00	2,600	1.58	92.44	14.41
South Carolina	90	100.00	100.00	2,500	1.25	93.50	10.21
South Dakota	170	100.00	100.00	2,700	1.50	94.10	7.81
Tennessee	100	96.35	98.62	2,400	2.05	90.71	12.93
Texas	210	100.00	100.00	6,800	2.50	93.13	12.89
Utah	100	100.00	100.00	2,800	1.40	91.38	9.35
Vermont	120	100.00	100.00	2,100	1.02	93.95	17.11
Virginia	90	100.00	100.00	2,600	2.22	92.14	12.17
Washington	110	100.00	100.00	2,900	1.17	91.87	12.06
West Virginia	100	100.00	100.00	2,500	1.63	91.75	11.27
Wisconsin	120	100.00	100.00	2,600	1.43	92.86	12.50
Wyoming	110	100.00	100.00	2,300	1.39	90.51	12.93
Bureau of Indian Education	120	70.98	73.15	1,000	1.21	91.26	14.34
DoDEA 2	70	96.87	92.06	1,600	0.82	94.57	9.98
Albuquerque	30	100.00	100.00	1,300	1.08	90.75	14.16
Atlanta	20	100.00	100.00	1,700	1.45	92.95	11.40
Austin	20	100.00	100.00	1,300	2.60	91.63	17.58
Baltimore City	50	99.02	97.76	1,200	3.22	85.38	21.48
Boston	40	100.00	100.00	1,300	4.07	87.88	26.62
Charlotte	30	100.00	100.00	1,300	1.50	92.25	9.91
Chicago	100	100.00	100.00	1,800	0.98	95.03	17.71
Cleveland	70	100.00	100.00	1,300	4.58	90.49	24.98
Dallas	50	100.00	100.00	1,300	2.55	92.69	20.88
Detroit	50	100.00	100.00	1,600	4.90	87.50	12.85
Duval County, FL	30	100.00	100.00	1,400	2.44	93.01	11.67
Fresno	20	100.00	100.00	1,300	1.64	91.73	8.01
Hillsborough County, FL	40	100.00	100.00	1,300	1.80	92.24	22.44
Houston	50	100.00	100.00	1,900	3.79	92.47	17.09
Jefferson County, KY	30	100.00	100.00	1,300	1.46	93.42	13.51
Los Angeles	60	100.00	100.00	1,700	2.54	93.20	11.75
Miami	70	100.00	100.00	1,800	3.17	93.22	19.02
New York City	70	97.21	97.77	1,800	1.66	90.70	23.68
Philadelphia	50	100.00	100.00	1,100	3.19	92.48	17.65
San Diego	30	100.00	100.00	1,100	2.23	92.98	7.32
District of Columbia Public Schools (DCPS)	40	98.06	96.55	1,300	5.31	86.28	20.78
National Private	590	55.74	53.19	2,400	0.44	94.85	5.25
Catholic	200	79.77	82.33	1,300	0.00	94.46	4.70
Non-Catholic Private	400	37.76	40.23	1,100	0.77	95.37	5.66
Puerto Rico	130	100.00	100.00	5,700	0.36	94.76	23.67
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, but not schools in Puerto Rico. 2 Department of Defense Education Activity schools. NOTE: Numbers of schools are rounded to nearest ten, and numbers of students are rounded to nearest hundred. Detail may not sum to totals due to rounding. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2015 Mathematics Assessment.

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