***Public and Private School Principle in the United States: A Statistical Profile, 1987-88 to 1993-94*****Table A20.�Percentage of public and private combined school principals who view certain issues           as serious problems in their schools, by selected school characteristics:  1993-94**---------------------------------------------------------------------------------------------------------------                                              Five most frequently identified problems in combined schools                                 -----------------------------------------------------------------------------                                Lack of parent                 Student    Students come   Parent alcohol/School characteristics           involvement     Poverty        apathy    unprepared to   drug abuse---------------------------------------------------------------------------------------------------------------PUBLIC     Total                           20.9          19.2          13.1          13.1          9.8     Minority enrollment     Less than 20%                   14.0          11.8          10.0          8.0           5.8     20% to 50%                      15.4          13.2          9.9           8.6           6.2     More than 50%                   36.3          35.7         21.3          25.0          19.1     School size       Less than 150                 24.6          26.8          16.3          17.7         17.3       150 to 499                    20.1          15.8          11.4          10.3          7.6       500 to 749                    16.3          14.6          12.3          10.4          1.7       750 or more                   17.2          12.6          11.0          12.8          2.9     District size       Less than 1,000               15.2          17.9          12.0          8.9          12.3       1,000-4,999                   20.5          21.1          13.5          13.2          9.8       5,000-9,999                   26.2          13.6          12.4          16.0          4.4       10,000 or more                25.6          23.4          15.0          16.0          9.5     Community type          Central city               29.2          30.9          17.4          22.5         11.5          Urban fringe/large town    21.0          15.8          15.8           8.3          8.6          Rural/small town           18.3          16.4          11.2          11.4          9.5PRIVATE     Total                           4.6            3.2          2.9           3.8           2.4     Minority enrollment     Less than 20%                   2.8            �            1.8           2.4            �     20% to 50%                      4.2           11.6          4.9           2.8           6.8     More than 50%                  16.5           10.6          6.5          14.2           4.4     School size         Less than 150               6.2           3.8           3.1           5.6           3.6         150 to 499                  1.7           2.7           2.8            �            0.0         500 to 749                  0.0           0.0            �            0.0           0.0         750 or more                 0.0           0.0           0.0           0.0           0.0---------------------------------------------------------------------------------------------------------------� Too few cases for a reliable estimate.NOTE:  Problems listed are the five most frequently identified in combined schools, in order of frequency.SOURCE:  U.S. Department of Education, National Center for Education Statistics, Schools andStaffing  Survey:  1993-94 (Public School Principal, Public School, and Teacher Demand and Shortage  Questionnaires).