IPEXTREME= placement of extreme scores on maps = Yes

 

Example 1: Exam1.txt. Table 1.0

 

IPEXTREME=Yes. Persons and items with extreme scores (here in red) placed at the extreme ends of the map.

Here, T1MWE=No. Items and persons with extreme scores are omitted from the Mean computation. Notice that the mean item difficulty is 0. UEXTREME=No. Items with extreme scores not included in UIMEAN=0.

 

MEASURE                                         KID - MAP - TAP

                                                 <more>|<rare>

    5                                                  +  1-3- 1-4- 1-4- 4-1-

                                                       |

    4                                                 T+

                                              Ric Sus  |S 1-4-

    3                                             Fra  +

                                                       |

    2                                 Ber Bet Els Tho S+  1-3- 1-4-

                                                       |

    1                             Bri Car Dav Joe Zul  +  1-3-

                                                       |

    0                                                 M+M   <- UIMEAN=0 UEXTREME=No T1MWE=No 

      Ann Aud Bar Dor Jam Kim Lin Mik Ron Tra Wal Wil  |

   -1                                                  +

                                          Jan Lis Rod  |  2-4-

   -2                                         Bre Pet S+

                                                       |  1-4-

   -3                                         Ada Ric  +

                                              Bla Mar  |S 1-3- 3-4-

   -4                                                 T+  1-4- 2-1-

                                                  Don  |  1-3-

   -5                                             Hel  +  1-2- 1-4  2-3

                                                 <less>|<frequent>

 

IPEXTREME=No. Persons and items with extreme scores (here in red) placed at their estimated measures on the map.

Here, T1MWE=Yes. Items and persons with extreme scores are included in the Mean computation. Notice that including the extreme items has moved the mean item difficulty to -1 logit.  UEXTREME=No. Items with extreme scores not included in UIMEAN=0.

 

MEASURE                                         KID - MAP - TAP

                                                 <more>|<rare>

    6                                                  +  4-1-3-

                                                       |

    5                                                  +  1-3-2- 1-4-2- 1-4-3-

                                                       |

    4                                                 T+

                                              Ric Sus  |S 1-4-2-

    3                                             Fra  +

                                                       |

    2                                 Ber Bet Els Tho S+  1-3-2- 1-4-3-

                                                       |

    1                             Bri Car Dav Joe Zul  +  1-3-1-

                                                       |

    0                                                  +

      Ann Aud Bar Dor Jam Kim Lin Mik Ron Tra Wal Wil M|

   -1                                                  +M   <- UIMEAN=0 UEXTREME=No T1MWE=Yes

                                          Jan Lis Rod  |  2-4-3-

   -2                                         Bre Pet  +

                                                      S|  1-4-2-

   -3                                         Ada Ric  +

                                              Bla Mar  |  1-3-2- 3-4-1

   -4                                                  +  1-4-3- 2-1-4

                                                  Don  |  1-3-4

   -5                                                 T+S

                                                       |

   -6                                                  +

                                                  Hel  |  1-2-4  1-4    2-3

   -7                                                  +

                                                 <less>|<frequent>

 

IPEXTREME=No, Persons and items with extreme scores (here in red) placed at their estimated measures on the map.

Here, T1MWE=Yesand UEXTREME=Yes Items and persons with extreme scores are included in the Mean computation. Extreme items are now included in UIMEAN=0.

 

MEASURE                                         KID - MAP - TAP

                                                 <more>|<rare>

    6                                                  +  4-1-3-

                                                       |

    5                                                  +  1-3-2- 1-4-2- 1-4-3-

                                                       |S

    4                                                 T+

                                              Ric Sus  |  1-4-2-

    3                                             Fra  +

                                                       |

    2                                 Ber Bet Els Tho S+  1-3-2- 1-4-3-

                                                       |

    1                             Bri Car Dav Joe Zul  +  1-3-1-

                                                       |

    0                                                  +M   <- UIMEAN=0 UEXTREME=Yes T1MWE=Yes

      Ann Aud Bar Dor Jam Kim Lin Mik Ron Tra Wal Wil M|

   -1                                                  +

                                          Jan Lis Rod  |  2-4-3-

   -2                                         Bre Pet  +

                                                      S|  1-4-2-

   -3                                         Ada Ric  +

                                              Bla Mar  |  1-3-2- 3-4-1

   -4                                                  +S 1-4-3- 2-1-4

                                                  Don  |  1-3-4

   -5                                                 T+

                                                       |

   -6                                                  +

                                                  Hel  |  1-2-4  1-4    2-3

   -7                                                  +

                                                 <less>|<frequent>