Standard errors for the number and percentage distribution of school principals, by school level, school type, and selected professional characteristics: School years 1993–94, 1999–2000, and 2003

Contexts of Elementary and Secondary Education: Standard Error Tables

School Characteristics and Climate

Table S34-2. Standard errors for the number and percentage distribution of school principals, by school level, school type, and selected professional characteristics: School years 1993–94, 1999–2000, and 2003–04

		Elementary			Secondary
Professional characteristic	All principals	All	Public	Private	All	Public	Private

1993–94
Total, number	340	380	290	240	190	160	110
Total, percentage	†	0.26	0.30	0.30	0.18	0.51	0.51
Years as a principal
3 or fewer	0.55	0.68	0.76	1.68	0.85	0.85	2.89
4–9	0.62	0.86	0.96	1.33	0.86	0.91	2.71
10–19	0.53	0.71	0.71	1.73	0.74	0.85	2.03
20 or more	0.36	0.54	0.66	1.15	0.39	0.43	1.21
Years of teaching experience prior to becoming principal
3 or fewer	0.42	0.53	0.47	1.44	0.61	0.42	3.06
4–9	0.55	0.76	0.85	1.43	1.04	1.07	2.25
10–19	0.67	0.76	0.89	1.14	1.02	1.10	2.41
20 or more	0.33	0.53	0.52	1.01	0.43	0.45	1.18
Years of teaching experience since becoming principal
3 or fewer	0.43	0.48	0.51	1.70	0.49	0.50	1.74
4–9	0.34	0.39	0.44	1.13	0.40	0.39	1.54
10–19	0.28	0.35	0.37	1.02	0.35	0.37	1.13
20 or more	0.22	0.28	0.25	1.01	0.17	0.17	0.70
Average annual salary, number	$180	$260	$210	$710	$240	$210	$970
Average annual salary, percentage
Less than $30,000	0.33	0.44	0.08	1.81	0.16	0.04	1.57
$30,000–44,999	0.26	0.36	0.32	1.40	0.58	0.32	3.71
$45,000–59,999	0.41	0.59	0.70	1.36	0.61	0.64	2.50
$60,000–74,999	0.51	0.72	0.87	0.63	0.75	0.80	2.19
$75,000–99,999	0.47	0.67	0.86	0.29	0.69	0.71	1.10
$100,000 or more	0.19	0.26	0.32	0.18	0.24	0.29	0.81

1999–2000
Total, number	430	370	250	240	230	200	130
Total, percentage	†	0.25	0.26	0.26	0.20	0.53	0.53
Years as a principal
3 or fewer	0.50	0.67	0.81	1.48	0.72	0.71	2.22
4–9	0.50	0.71	0.81	1.62	0.79	0.83	2.71
10–19	0.52	0.68	0.80	1.22	0.79	0.81	2.61
20 or more	0.38	0.50	0.50	1.18	0.58	0.60	2.29
Years of teaching experience prior to becoming principal
3 or fewer	0.34	0.41	0.36	1.35	0.59	0.53	2.79
4–9	0.52	0.71	0.80	1.56	0.86	0.85	2.72
10–19	0.58	0.76	0.92	1.35	0.86	0.84	3.02
20 or more	0.50	0.62	0.67	1.29	0.68	0.66	2.32
Years of teaching experience since becoming principal
3 or fewer	0.40	0.49	0.52	1.32	0.61	0.56	2.56
4–9	0.30	0.39	0.41	1.24	0.49	0.46	2.09
10–19	0.31	0.38	0.39	0.76	0.33	0.30	1.60
20 or more	0.16	0.19	0.19	0.62	0.23	0.19	1.28
Average annual salary, number	$210	$250	$210	$740	$340	$270	$1,930
Average annual salary, percentage
Less than $30,000	0.30	0.34	0.11	1.51	0.31	0.04	2.54
$30,000–44,999	0.28	0.35	0.17	1.52	0.30	0.18	2.19
$45,000–59,999	0.46	0.57	0.57	1.27	0.66	0.66	2.38
$60,000–74,999	0.57	0.74	0.92	0.65	0.77	0.81	1.86
$75,000–99,999	0.50	0.67	0.81	0.59	0.73	0.78	2.13
$100,000 or more	0.22	0.30	0.36	0.40	0.36	0.40	1.14

2003–04
Total, number	700	460	360	330	490	270	360
Total, percentage	†	0.43	0.35	0.35	0.37	1.41	1.41
Years as a principal
3 or fewer	0.66	0.91	1.08	1.59	1.21	1.36	3.31
4–9	0.69	0.94	1.07	1.26	1.26	1.41	3.70
10–19	0.67	0.79	0.92	1.33	1.47	1.57	3.03
20 or more	0.36	0.45	0.46	1.07	0.61	0.54	2.72
Years of teaching experience prior to becoming principal
3 or fewer	0.40	0.47	0.40	1.40	0.61	0.50	2.66
4–9	0.62	0.78	0.90	1.17	1.29	1.38	4.16
10–19	0.61	0.86	0.98	1.60	1.37	1.41	3.07
20 or more	0.51	0.65	0.76	1.14	0.85	0.91	2.78
Years of teaching experience since becoming principal
3 or fewer	0.38	0.46	0.42	1.48	1.05	0.93	3.20
4–9	0.33	0.36	0.36	1.05	0.93	0.91	2.87
10–19	0.23	0.29	0.22	1.09	0.37	0.31	2.15
20 or more	0.13	0.13	0.06	0.56	0.19	0.10	1.20
Average annual salary, number	$240	$270	$220	$710	$660	$440	$2,600
Average annual salary, percentage
Less than $30,000	0.28	0.34	0.10	1.41	0.34	0.12	2.23
$30,000–44,999	0.35	0.42	0.25	1.56	0.53	0.49	2.94
$45,000–59,999	0.40	0.50	0.49	1.24	0.73	0.64	3.32
$60,000–74,999	0.56	0.77	0.93	0.96	1.20	1.35	2.52
$75,000–99,999	0.60	0.77	0.95	0.66	1.18	1.21	2.78
$100,000 or more	0.34	0.38	0.46	0.54	0.97	1.03	2.31

† Not applicable.
SOURCE: U.S. Department of Education, National Center for Education Statistics, Schools and Staffing Survey (SASS), “Public School Principal Data File” and “Private School Principal Data File,” 1993–94, 1999–2000, and 2003–04 and “Charter School Principal Data File,” 1999–2000.

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