Table A16.Average years of experience in education for public and private school principals, 
           by selected school and principal characteristics:  1987-88, 1990-91, and 1993-94
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                                                          Professional experience in education
                                        ---------------------------------------------------------------
                                           Average years as teachers          Average years as principals
                                       ---------------------------------- -----------------------------
School/principal characteristics          1987-88   1990-91   1993-94        1987-88   1990-91   1993-94
-------------------------------------------------------------------------------------------------------
PUBLIC
Total                                        9.8      10.5      11.0           10.0       9.3       8.6
    School level
         Elementary                          9.8      10.7      11.2           10.4       9.6       8.9
         Secondary                           9.7      10.1      10.6            9.3       9.0       8.0
         Combined                            9.3      10.4      10.9            8.4       8.0       7.5
    School size
         Less than 150                       9.7       9.9      10.1            8.2       8.6       8.0
         150-499                             9.8      10.8      11.4           10.6       9.6       9.0
         500-749                             9.9      10.6      11.0            9.9       9.5       8.6
         750 or more                         9.5      10.1      10.6            9.5       9.0       8.3
    Minority enrollment
         Less than 20%                       9.3      10.3      10.7           10.5       9.9       9.3
         20-50%                             10.0      10.3      11.0            9.9       9.1       8.5
         More than 50%                      11.0      11.3      11.7            8.7       8.2       7.3
    Free-lunch recipients
         Less than 20%                       9.4      10.2      11.0           10.4       9.9       9.0
         20-49%                              9.6      10.4      10.9           10.1       9.4       8.9
         50% or more                        10.8      11.1      11.4            9.1       8.6       8.1
    District size
         Less than 1,000                     9.1      10.0      10.6            9.5       8.8       8.5
         1,000-4,999                         9.7      10.5      11.1           10.2       9.7       8.8
         5,000-9,999                         9.4      10.3      10.9           10.6      10.0       9.0
         10,000 or more                     10.3      10.8      11.2            9.7       9.0       8.6
    Community type
         Central city                       10.3      10.9      11.3            9.6       9.0       8.3
         Urban fringe/large town             9.6      10.6      11.2           10.7       9.5       8.8
         Rural/small town                    9.5      10.2      10.8            9.8       9.4       8.8
    Sex
         Male                                9.0       9.6      10.0           11.2      10.8      10.2
         Female                             12.2      12.5      13.0            6.1       5.8       5.6
    Race-ethnicity
         American Indian/Alaska Native       9.3      10.0       9.9            9.8       7.7       8.2
         Asian/Pacific Islander             10.9      11.2      11.7            7.5       6.7       5.6
         Black non-Hispanic                 11.8      12.0      12.7            8.9       8.3       7.0
         White non-Hispanic                  9.6      10.3      10.8           10.2       9.6       9.0
         Hispanic                            9.6      10.6      11.3            6.7       7.4       6.3
         Total minority                     11.0      11.5      12.2            8.4       8.0       6.8
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Table A16.Average years of experience in education for public and private school principals,
           by selected school and principal characteristics:  1987-88, 1990-91, and 1993-94(continue)
-------------------------------------------------------------------------------------------------------
                                                          Professional experience in education
                                        ---------------------------------------------------------------
                                           Average years as teachers          Average years as principals
                                       ---------------------------------- -----------------------------
School/principal characteristics          1987-88   1990-91   1993-94        1987-88   1990-91   1993-94
-------------------------------------------------------------------------------------------------------
PRIVATE
Total                                        9.6       9.4       9.4            7.9       8.6       8.8
     School level
          Elementary                        10.5      10.2      10.4            8.4       9.0       9.4
          Secondary                         11.2      11.2      10.5            7.4       8.1       7.8
          Combined                           6.8       6.7       7.4            7.0       7.8       8.0
     School size
          Less than 150                      7.1       7.2       7.3            6.8       7.5       8.0
          150-499                           12.0      11.7      12.0            8.8       9.8       9.7
          500-749                           11.8      11.6      11.7           10.7      10.2       9.9
          750 or more                       12.5      11.4      12.3            9.9       9.6       9.9
     Minority enrollment
          Less than 20%                      9.3       9.1       9.5            7.8       8.6       8.7
          20-50%                             9.7       9.6       9.1            8.6       8.7       9.3
          More than 50%                     10.7      10.5      10.0            8.0       8.5       8.8
     Sex
          Male                               6.7       6.5       7.6            8.1       9.0       9.0
          Female                            12.3      12.1      11.0            7.8       8.6       8.4
     Race-ethnicity
          American Indian/Alaska Native      6.6       9.7      13.4            6.1      14.1      11.1
          Asian/Pacific Islander             6.4       8.0       5.3            9.3      10.9       9.3
          Black non-Hispanic                 9.9      10.9       7.4            6.4       6.9       8.3
          White non-Hispanic                 9.6       9.4       9.5            8.0       8.7       8.7
          Hispanic                          11.0       9.6      12.1            7.9       7.0      10.1
          Total minority                     9.4      10.0       8.9            7.5       7.9       9.1
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SOURCE:  U.S. Department of Education, , Schools and 
Staffing Survey:  1987-88 (School Administrator, Public and Private School, and Teacher Demand
and Shortage Questionnaires), 1990-91 (Public and Private School Administrator, Public and Private
School, and Teacher Demand and Shortage Questionnaires), and 1993-94 (Public and Private 
School Principal, Public and Private School, and Teacher Demand and Shortage Questionnaires).