FITP= person misfit criterion = 2.0

Specifies the minimum t standardized fit value at which persons are selected for reporting as misfits. For Table 6, person measures in fit order, a person is omitted only if the absolute values of both t standardized fit statistics are less than FITP=, and both mean-square statistics are closer to 1 than (FITP=)/10, and the person point-biserial correlation is positive. The 26 most underfitting persons(high mean-squares) and 26 most overfitting persons (low mean-squares) are always reported.

 

For Table 7, the diagnosis of misfitting persons, with a t standardized fit greater than FITP= are reported. Selection is based on the OUTFIT statistic, unless you set OUTFIT=N in which case the INFIT statistic is used. If MNSQ=YES, then selection is based on the mean-square value: 1 + FITP=/10.

 

Example 1: You wish to examine wildly guessing persons in Tables 6 and 7.

  FITP= 3  an extreme positive value

 

Example 2: You wish to include all persons in Tables 6 and 7.

  FITP= 0

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