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Erratum: Vol. 64, No. 30

In the report, "School Start Times for Middle School and High School Students — United States, 2011–12 School Year," an error occurred in the arrangement of column headings in the table on pages 811 and 812. The corrected table follows.

TABLE. Average start time and percentage distribution of start times for public middle, high, and combined schools,* by school level and state — Schools and Staffing Survey 2011–12 school year

School level
and state

Estimated no. of public middle, high, and combined schools

Estimated no. of students in public middle, high, and combined schools

Average start time (a.m.)

Percentage distribution of public middle, high,
and combined school start times

Before
7:30 a.m.

7:30 a.m.
to 7:59 a.m.

8:00 a.m.
to 8:29 a.m.

8:30 a.m.
or later

No.

(SE)

No.

(SE)

 Time

(SE)§

%

(SE)

%

(SE)

%

(SE)

%

(SE)

Total

39,700

(390)

26,284,000

(613,100)

8:03

(1)

6.7

(0.4)

31.9

(0.8)

43.7

(0.8)

17.7

(0.7)

School level

Middle

13,990

(169)

8,674,000

(135,800)

8:04

(1)

4.8

(0.7)

35.9

(1.3)

40.4

(1.1)

18.9

(1.0)

High

18,360

(434)

14,995,000

(413,600)

7:59

(1)

9.5

(0.6)

33.0

(1.1)

43.1

(1.1)

14.4

(0.9)

Combined

7,350

(571)

2,615,000

(300,600)

8:08

(3)

3.5

(0.7)

21.6

(2.2)

51.5

(2.6)

23.4

(2.7)

State

Alabama

680

(39)

344,000

(31,100)

7:49

(2)

6.4

(2.2)††

57.8

(4.4)

34.0

(5.3)

—**

Alaska

—**

—**

8:33

(8)

0.0

§§

11.6

(3.8)††

11.6

(4.8)††

76.8

(7.8)

Arizona

860

(159)

506,000

(53,100)

8:03

(3)

8.1

(2.9)††

23.3

(6.6)

47.3

(5.8)

21.3

(5.0)

Arkansas

450

(28)

292,000

(30,300)

8:01

(1)

—**

29

(4.7)

63.0

(4.7)

7.3

(2.0)

California

3,880

(219)

3,303,000

(146,300)

8:07

(2)

3.5

(0.9)

27.7

(3.1)

47.6

(3.3)

21.2

(2.9)

Colorado

730

(84)

527,000

(51,700)

7:54

(2)

16.9

(5.1)

31.3

(6.6)

40.9

(5.1)

10.9

(2.6)

Connecticut

380

(24)

260,000

(23,900)

7:46

(2)

13.8

(2.9)

57.4

(4.2)

24.0

(3.8)

4.8

(2.1)††

Delaware

090

(4)

63,000

(4,900)

7:42

(3)

24.0

(5.3)

51.9

(6.3)

16.6

(4.6)

7.5

(3.0)††

District of Columbia

—**

—**

—**

—**

—**

—**

—**

Florida

1,570

(100)

1,406,000

(111,400)

8:17

(3)

19.5

(2.5)

18.6

(2.4)

19.3

(2.9)

42.6

(3.8)

Georgia

1,030

(24)

955,000

(77,500)

8:09

(2)

—**

28.7

(4.3)

43.9

(4.6)

24.0

(3.4)

Hawaii

—**

—**

8:03

(3)

0.0

§§

42.5

(17.3)††

57.5

(17.3)††

0.0

§§

Idaho

370

(182)

157,000

(40,300)

8:13

(28)

0.0

§§

20.9

(7.5)††

58.3

(14.5)

—**

Illinois

1,590

(48)

1,008,000

(145,200)

8:13

(3)

—**

19.7

(3.4)

48.7

(5.5)

28.4

(6.0)

Indiana

740

(27)

559,000

(43,800)

7:58

(2)

—**

41.8

(3.2)

45.1

(4.0)

10.2

(2.7)

Iowa

550

(35)

249,000

(31,300)

8:23

(6)

0.0

§§

6.3

(2.0)††

66.3

(7.2)

27.4

(7.6)

Kansas

540

(20)

204,000

(20,000)

8:00

(1)

—**

26.5

(3.5)

71.5

(3.7)

—**

Kentucky

710

(32)

358,000

(33,100)

8:03

(4)

8.6

(4.2)††

24.8

(4.0)

49.0

(5.8)

17.5

(4.0)

Louisiana

630

(32)

316,000

(33,100)

7:40

(2)

29.9

(4.8)

53.1

(4.9)

12.1

(3.5)

—**

Maine

240

(5)

105,000

(5,500)

7:53

(3)

6.6

(1.9)

53.1

(5.1)

32.8

(4.8)

7.5

(3.6)††

Maryland

—**

—**

—**

—**

—**

—**

—**

Massachusetts

700

(58)

527,000

(48,600)

7:53

(4)

8.0

(3.6)††

53.3

(6.1)

27.2

(5.1)

11.5

(5.4)††

Michigan

1,540

(47)

891,000

(59,100)

7:54

(2)

9.5

(2.1)

43.6

(3.6)

39.0

(3.5)

7.9

(2.2)

Minnesota

1,100

(58)

522,000

(43,100)

8:18

(3)

0.9

(0.4)††

18.8

(2.6)

46.7

(3.7)

33.6

(3.5)

Mississippi

570

(23)

272,000

(18,600)

7:47

(2)

12.4

(3.7)††

58.3

(4.3)

29.3

(4.3)

0.0

§§

Missouri

900

(37)

530,000

(28,700)

7:54

(1)

6.7

(1.7)

39.0

(3.9)

51.0

(3.9)

3.2

(1.4)††

Montana

220

(15)

78,000

(8,200)

8:13

(2)

0.0

§§

5.8

(2.1)††

80.9

(6.1)

13.4

(5.5)††

Nebraska

370

(26)

150,000

(19,200)

8:07

(1)

0.0

§§

8.0

(2.5)††

88.9

(2.4)

3.0

(1.4)††

Nevada

260

(12)

276,000

(20,900)

7:51

(3)

18.0

(3.0)

30.7

(5.5)

38.2

(6.0)

13.1

(3.6)

New Hampshire

180

(18)

116,000

(7,800)

7:46

(2)

11.6

(3.2)

64.4

(5.7)

19.7

(4.4)

—**

New Jersey

870

(52)

698,000

(45,200)

8:00

(2)

6.7

(2.0)

37.2

(4.5)

41.2

(4.7)

14.9

(3.6)

New Mexico

310

(99)

151,000

(47,000)

8:10

(3)

1.6

(0.7)††

24.1

(5.8)

53.9

(10.2)

20.4

(5.9)

New York

2,070

(108)

1,670,000

(149,100)

7:59

(2)

7.7

(3.1)††

31.6

(2.9)

49.6

(3.4)

11.0

(2.5)

North Carolina

1,120

(35)

768,000

(88,900)

8:03

(2)

—**

36.6

(5.0)

45.3

(5.4)

15.2

(4.2)

North Dakota

220

(9)

67,000

(5,000)

8:31

(1)

0.0

§§

2.8

(1.2)††

18.7

(3.2)

78.5

(3.4)

Ohio

1,640

(73)

1,061,000

(60,800)

7:52

(2)

13.1

(2.0)

45.3

(4.3)

29.3

(3.7)

12.3

(3.0)


TABLE. (Continued) Average start time and percentage distribution of start times for public middle, high, and combined schools,* by school level and state — Schools and Staffing Survey 2011–12 school year

School level
and state

Estimated no. of public middle, high, and combined schools

Estimated no. of students in public middle, high, and combined schools

Average start time (a.m.)

Percentage distribution of public middle, high,
and combined school start times

Before
7:30 a.m.

7:30 a.m.
to 7:59 a.m.

8:00 a.m.
to 8:29 a.m.

8:30 a.m.
or later

No.

(SE)

No.

(SE)

 Time

(SE)§

%

(SE)

%

(SE)

%

(SE)

%

(SE)

Oklahoma

700

(27)

356,000

(29,000)

8:10

(2)

0.0

§§

12.0

(2.8)

77.6

(3.9)

10.4

(2.8)

Oregon

480

(25)

282,000

(21,100)

8:14

(3)

—**

25.2

(3.8)

45.0

(4.1)

28.9

(4.2)

Pennsylvania

1,280

(145)

1,001,000

(189,700)

7:48

(2)

13.0

(3.0)

51.3

(6.6)

32.6

(7.9)

3.1

(1.3)††

Rhode Island

100

(10)

68,000

(6,200)

7:50

(4)

24.8

(6.1)

27.5

(7.9)

40.3

(9.2)

—**

South Carolina

500

(9)

411,000

(26,400)

8:03

(2)

—**

35.3

(6.5)

50.9

(6.8)

12.3

(3.7)

South Dakota

230

(11)

78,000

(5,200)

8:13

(2)

—**

6.6

(2.7)††

77.7

(4.2)

14.8

(4.9)††

Tennessee

760

(47)

533,000

(31,000)

7:57

(3)

13.3

(3.4)

29.4

(4.7)

40.0

(5.1)

17.2

(3.5)

Texas

3,940

(183)

2,556,000

(254,700)

8:05

(2)

3.1

(1.2)††

28.3

(3.4)

46.3

(3.5)

22.4

(2.7)

Utah

410

(22)

297,000

(45,200)

8:05

(3)

0.0

§§

33.1

(5.3)

49.6

(5.9)

17.3

(5.9)††

Vermont

100

(2)

46,000

(2,600)

8:05

(2)

—**

34.1

(5.1)

48.0

(4.8)

15.1

(3.0)

Virginia

850

(17)

555,000

(37,700)

8:04

(2)

10.0

(2.6)

26.6

(4.4)

42.6

(4.4)

20.8

(3.6)

Washington

930

(35)

526,000

(42,300)

8:08

(2)

6.4

(1.9)††

24.2

(3.8)

50.2

(4.6)

19.3

(3.5)

West Virginia

300

(5)

160,000

(7,000)

7:54

(2)

11.1

(2.0)

33.9

(3.3)

47.9

(4.0)

7.1

(2.3)††

Wisconsin

860

(37)

423,000

(44,200)

7:59

(3)

2.3

(1.0)††

48.2

(5.4)

39.1

(4.3)

10.4

(4.4)††

Wyoming

130

(8)

50,000

(4,300)

7:59

(1)

0.0

§§

41.1

(5.2)

58.9

(5.2)

0.0

§§

Source: U.S. Department of Education, National Center for Education Statistics, Schools and Staffing Survey (SASS), "Public School Data File," 2011–12.

Abbreviation: SE = standard error.

* Middle schools include any schools with no grade lower than 5 and no grade higher than 8. High schools include any school with no grade lower than 7 and at least one grade higher than 8. Combined schools include any schools with at least one grade lower than 7 and at least one grade higher than 8, or with all students in ungraded classrooms.

Detail may not sum to totals because of rounding and because some data are not shown.

§ SE of average start time is expressed in minutes.

Schools with afternoon start times were not included in analysis.

** Reporting standards not met. Relative standard error ≥0.5 or the response rate <50%.

†† Interpret data with caution. 0.3 ≤ relative standard error < 0.5.

§§ Rounds to zero. SE is not applicable.



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