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           2009 AMC8 Report for all schools in New Jersery             

           Number of schools returning results       72
           Average of school highest score        18.15
           Average school team score              49.49

           # of State Student Participants         4440
           Overall State Average Score            10.11

                       Average Score by Grade level

                   Grade         # of Students  Average

                    5th              37          10.86
                    6th             634           8.68
                    7th            1512          10.01
                    8th            2206          10.58



           Number of Female Students               2018
           Average Score of Female Students        9.52

                       Average Female Scores by Grade

                   Grade         # of Students  Average
                   5th               10          11.30
                   6th              264           8.22
                   7th              693           9.31
                   8th             1044           9.96



           Number of Male Participants             2367
           Average Score of Male Participants     10.61

                       Average score for Males by Grade

                   Grade         # of Students  Average
                   5th               27          10.70
                   6th              366           9.01
                   7th              816          10.61
                   8th             1130          11.13




                     2009 American Mathematics Contest  8
                   Number of Students Achieving Indicated Score



                 SCORE        MALE       FEMALE       TOTAL*
                  25            2            1            3
                  24            2                         2
                  23            4            1            5
                  22            9            1           10
                  21            9            3           12
                  20           20            8           28
                  19           23            5           28
                  18           43           14           59
                  17           61           19           81
                  16           71           33          104
                  15          102           52          159
                  14          128           91          227
                  13          175          123          301
                  12          210          167          379
                  11          263          204          469
                  10          300          222          526
                   9          250          259          518
                   8          227          259          490
                   7          185          212          402
                   6          123          156          282
                   5           77           87          169
                   4           49           61          111
                   3           18           24           43
                   2            8           11           19
                   1            1            1            2
                   0  (@)       1                         1
                   0  ($)       6            4           10



           (@)  These students attempted some of the problems
           ($)  These students attempted none of the problems
           (*)  Total includes students who failed to mark their gender

                         2009 American Mathematics Contest  8
                             Number of Students by Grade
                              Achieving indicated Score



            SCORE   5th Grade    6th Grade    7th Grade    8th Grade
              25                                    2            1
              24                                                 2
              23                                    4            1
              22                                    5            4
              21                       1            3            8
              20                                   12           16
              19                       4           10           14
              18                       3           16           37
              17          2            2           25           52
              16                       6           27           71
              15          3           11           42          102
              14          4           23           66          128
              13          4           26           96          170
              12          3           49          123          202
              11          4           48          174          237
              10          3           54          192          273
               9          5           75          180          256
               8          2           92          179          209
               7          3           88          149          159
               6          3           54           94          127
               5          1           45           56           63
               4                      28           38           44
               3                      12           12           18
               2                       7            3            9
               1                       2
               0(@)                    4            4            3
               0($)



           (@)  These students attempted some of the problems
           ($)  These students attempted none of the problems

           Note:  Some students failed to indicate a grade





                         2009 American Mathematics Contest  8
                             Number of Schools with 3+ students
                              Achieving team Scores



            SCORE   school count
              70          1
              67          1
              66          2
              65          2
              64          1
              63          1
              61          2
              60          3
              59          1
              58          4
              57          3
              56          1
              54          3
              53          3
              50          6
              49          2
              48          2
              47          6
              46          2
              45          1
              44          3
              43          4
              42          5
              41          5
              40          1
              39          1
              38          2
              37          2







                   Table of Item Difficulty for the 2009
                      American Mathematics Contest  8
                 Tabulation of responses by    4440 Students
                             Percent of Responses


    ITEM    A         B         C         D         E       OMITS       ?
    ____  _____     _____     _____     _____     _____     _____     _____

      1    0.25      0.20      2.23      2.07     94.91*     0.34      0.00
      2    2.59      3.54      2.39     88.65*     2.36      0.47      0.00
      3   11.89      2.84     82.09*     1.28      1.62      0.27      0.00
      4   10.45     62.41*     2.97     11.22     11.98      0.92      0.05
      5    5.09     14.48     14.93     60.11*     3.54      1.82      0.02
      6   66.33*     8.42      8.29      5.97      9.17      1.78      0.05
      7    2.61      9.50     33.27*    21.55     30.29      2.64      0.14
      8   27.32     24.75*    37.16      4.17      5.23      1.28      0.09
      9   14.73     37.68*    18.78     17.48      7.68      3.51      0.14
     10    2.95     27.43     13.15     48.51*     7.16      0.74      0.05
     11    6.60     15.38     23.92     31.62*    17.45      5.00      0.02
     12   16.87     24.73      4.30     46.24*     6.53*     1.24      0.09
     13    6.96     78.47*     4.19      7.16      1.96      1.19      0.07
     14    4.80      7.95*    76.17      4.93      3.58      2.57      0.00
     15   17.23     13.63     16.69     30.50*    18.13      3.69      0.14
     16   31.87     16.91     18.63     13.96*    14.46      4.05      0.11
     17   15.97     22.77*    22.82     19.64     11.37      7.30      0.14
     18   21.69     12.05     38.20*    13.40      9.32      5.25      0.09
     19   11.51     14.64     18.09     24.14*    25.00      6.37      0.25
     20   19.98     30.36     12.73     17.68*    12.59      6.58      0.09
     21   15.88     37.59     17.25     13.76*     6.46      9.01      0.05
     22   10.97     14.10     20.27     23.00*    23.63      7.73      0.32
     23   13.09     29.19*    17.25     19.44     11.24      9.62      0.18
     24   17.57     18.74     20.90     17.03     14.89*    10.81      0.07
     25   13.51     17.05     19.23     17.48     20.05*    12.50      0.18


   (*)  Correct Response

   (?)  Response the computer was unable to read due to incomplete
        erasures or two answers marked for the same problem