Table A2.-Mean absolute percentage errors (MAPEs) by lead time for selected statistics in public elementary and secondary schools and degree-granting institutions
|
Statistics |
Lead time (years) |
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|
Public elementary and secondary schools1 |
K-12 enrollment | 0.2 | 0.5 | 0.7 | 0.9 | 1.2 | 1.4 | 1.8 | 2.0 | 2.4 | 2.9 |
K-8 enrollment | 0.3 | 0.5 | 0.8 | 1.0 | 1.2 | 1.7 | 2.2 | 2.9 | 3.5 | 4.3 |
9-12 enrollment | 0.4 | 0.7 | 0.9 | 1.0 | 1.3 | 1.6 | 2.0 | 2.2 | 2.4 | 2.6 |
High school graduates | 0.7 | 0.9 | 1.4 | 2.0 | 1.7 | 1.9 | 2.6 | 3.7 | 3.6 | 4.1 |
Teachers | 1.9 | 1.3 | 1.8 | 1.7 | 1.9 | 1.8 | 2.2 | 2.8 | 3.3 | 4.6 |
Total
current expenditures2
|
1.3 | 2.3 | 2.2 | 2.1 | 3.1 | 3.9 | 4.5 | 4.7 | 4.7 | 2.6 |
Current
expenditures per pupil in fall enrollment2
|
1.3 | 2.0 | 2.0 | 2.0 | 3.6 | 4.4 | 5.2 | 6.0 | 7.1 | 6.3 |
Current expenditures per pupil in ADA 2 | 1.2 | 1.6 | 1.9 | 2.0 | 3.3 | 4.0 | 4.9 | 5.8 | 7.1 | 6.4 |
Estimates
average annual teacher salaries2
|
1.3 | 1.7 | 2.2 | 3.8 | 5.5 | 7.8 | 10.0 | 12.1 | 14.4 | 15.9 |
|
Degree-granting institutions3 |
Total enrollment | 1.0 | 0.9 | 0.9 | 1.1 | 2.2 | 3.0 |
(4)
|
(4) | (4) | (4) |
Men | 1.0 | 1.5 | 1.6 | 2.2 | 3.4 | 5.8 | (4) | (4) | (4) | (4) |
Women | 1.6 | 1.8 | 1.6 | 0.9 | 1.2 | 0.7 | (4) | (4) | (4) | (4) |
4-year | 1.0 | 1.4 | 1.5 | 2.1 | 2.8 | 2.3 | (4) | (4) | (4) | (4) |
2-year | 1.9 | 1.9 | 2.0 | 2.1 | 2.7 | 4.0 | (4) | (4) | (4) | (4) |
Associate's degrees | 1.5 | 3.4 | 6.0 | 5.7 | 6.4 | (4) | (4) | (4) | (4) | (4) |
Bachelor's degrees | 1.0 | 1.8 | 1.3 | 2.5 | 1.0 | (4) | (4) | (4) | (4) | (4) |
Master's degrees | 1.0 | 3.8 | 2.8 | 2.1 | 2.1 | (4) | (4) | (4) | (4) | (4) |
Doctor's degrees | 2.0 | 2.8 | 2.8 | 3.7 | 3.7 | (4) | (4) | (4) | (4) | (4) |
First-professional degrees | 1.6 | 1.5 | 1.4 | 3.8 | 3.8 | (4) | (4) | (4) | (4) | (4) |
1MAPEs for
enrollments and high school graduates were calculated
using the last 18 editions of the Projections of Education
Statistcs, teachers from the past 12 editions,
and MAPEs for current expenditures and teacher salaries
were calculated using projections from the last 11 editions
of the Projections of Education Statistics.
2In constant
dollars based on the Consumer Price Index for all urban
consumers, Bureau of Labor Statistics, U.S. Department
of Labor.
3MAPEs for
enrollments and earned degrees were calculated using the
last 6 editions of the Projections of Education Statistcs.
4Not
all actual values were available to calculate a MAPE of
this lead time.
NOTE: Mean absolute percentage error is the average value
of the absolute values of errors expressed in percentage
terms. Calculations were made using unrounded numbers.
Some data have been revised from previously published
numbers.
SOURCES: U.S. Department of Education, National Center
for Education Statistics, Projections of Education
Statistics, various issues. (This table was prepared
May 2001.) |