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           2009 AMC8 Report for all schools in Thailand                

           Number of schools returning results        2
           Average of school highest score        15.50
           Average school team score              43.00

           # of State Student Participants          128
           Overall State Average Score             9.20

                       Average Score by Grade level

                   Grade         # of Students  Average

                    5th               1          12.00
                    6th              21           8.86
                    7th              43           8.33
                    8th              63           9.86



           Number of Female Students                 66
           Average Score of Female Students        8.89

                       Average Female Scores by Grade

                   Grade         # of Students  Average
                   6th               13           8.23
                   7th               18           8.11
                   8th               35           9.54



           Number of Male Participants               62
           Average Score of Male Participants      9.52

                       Average score for Males by Grade

                   Grade         # of Students  Average
                   5th                1          12.00
                   6th                8           9.88
                   7th               25           8.48
                   8th               28          10.25




                     2009 American Mathematics Contest  8
                   Number of Students Achieving Indicated Score



                 SCORE        MALE       FEMALE       TOTAL*
                  25
                  24
                  23
                  22
                  21
                  20
                  19
                  18
                  17
                  16            1            1            2
                  15            3            2            5
                  14            3            1            4
                  13            5            7           12
                  12            7            6           13
                  11            5            5           10
                  10            5            8           13
                   9            7            4           11
                   8           10            7           17
                   7            7            6           13
                   6            3            9           12
                   5            3            6            9
                   4            2                         2
                   3                         3            3
                   2                         1            1
                   1
                   0  (@)
                   0  ($)       1                         1



           (@)  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
              24
              23
              22
              21
              20
              19
              18
              17
              16                                                 2
              15                       1            1            3
              14                       1            1            2
              13                       2            2            8
              12          1            2            1            9
              11                       1            2            7
              10                       1            7            5
               9                       2            6            3
               8                       4            8            5
               7                       2            6            5
               6                                    4            8
               5                       4            1            4
               4                                    1            1
               3                                    2            1
               2                       1
               1
               0(@)                                 1
               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
              47          1
              39          1







                   Table of Item Difficulty for the 2009
                      American Mathematics Contest  8
                 Tabulation of responses by     128 Students
                             Percent of Responses


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

      1    0.78      0.78      5.47      3.13     89.06*     0.78      0.00
      2    3.13      5.47      7.81     77.34*     3.13      3.13      0.00
      3    9.38      1.56     82.03*     1.56      3.13      2.34      0.00
      4   13.28     64.06*     3.91      9.38      7.03      2.34      0.00
      5    7.81      6.25     13.28     58.59*     3.91     10.16      0.00
      6   74.22*     7.81      5.47      2.34      3.13      7.03      0.00
      7    1.56     10.94     32.03*    15.63     20.31     19.53      0.00
      8   18.75     22.66*    42.19      6.25      3.13      7.03      0.00
      9   16.41     26.56*    13.28     14.06      5.47     24.22      0.00
     10    1.56     26.56     19.53     44.53*     4.69      3.13      0.00
     11    7.81     10.16     14.84     22.66*    18.75     25.78      0.00
     12   18.75     21.88      5.47     39.84*     9.38*     4.69      0.00
     13    9.38     68.75*     4.69      9.38      2.34      5.47      0.00
     14    4.69      9.38*    66.41      5.47      5.47      8.59      0.00
     15   13.28     13.28     14.06     33.59*     3.13     22.66      0.00
     16   26.56      9.38     20.31      6.25*    17.19     20.31      0.00
     17   13.28     17.97*    15.63     14.84      7.03     31.25      0.00
     18   17.19      6.25     37.50*    10.16     11.72     17.19      0.00
     19    7.03     14.84     19.53     16.41*    21.88     19.53      0.78
     20   13.28     21.88      7.81     25.78*    12.50     18.75      0.00
     21   10.16     38.28     10.94      8.59*     6.25     25.78      0.00
     22    8.59     12.50     18.75     16.41*    21.09     21.88      0.78
     23    9.38     23.44*    12.50     18.75      9.38     26.56      0.00
     24    7.81     12.50     17.97     16.41     10.16*    35.16      0.00
     25    8.59     14.06     13.28     12.50     11.72*    39.84      0.00


   (*)  Correct Response

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