DIF ANALYSIS
                            Default.math.EXAM
                       February 13, 2010  13:24:42
================================================================================

 Item       Chi-square  p-value  Valid N          E.S. (95% C.I.)       Class  
----------  ----------  -------  -------  ----------------------------  -----  
item1             2.87     0.09      485      0.69 (    0.45,    1.06)     A                                            
item2             3.13     0.08      441      1.53 (    0.95,    2.46)     A                                            
item3             0.75     0.39      485      1.21 (    0.79,    1.86)     A                                            
item4             1.51     0.22      485      1.28 (    0.86,    1.89)     A                                            
item5             0.85     0.36      485      0.79 (    0.49,    1.29)     A                                            
item6             1.20     0.27      485      1.26 (    0.83,    1.91)     A                                            
item7             0.32     0.57      485      1.13 (    0.75,    1.70)     A                                            
item8             1.24     0.27      485      0.76 (    0.47,    1.23)     A                                            
item9             0.15     0.70      485      0.92 (    0.60,    1.41)     A                                            
item10            0.20     0.66      485      1.10 (    0.73,    1.63)     A                                            
item11            0.01     0.92      485      1.02 (    0.70,    1.48)     A                                            
item12            0.13     0.72      485      1.09 (    0.69,    1.72)     A                                            
item13            0.05     0.82      485      0.96 (    0.64,    1.42)     A                                            
item14            0.46     0.50      485      0.88 (    0.61,    1.28)     A                                            
item15            0.00     0.97      485      1.01 (    0.69,    1.47)     A                                            
item16            0.62     0.43      485      0.85 (    0.56,    1.28)     A                                            
item17            1.54     0.21      485      0.75 (    0.48,    1.18)     A                                            
item18            0.02     0.88      485      1.03 (    0.69,    1.53)     A                                            
item19            0.35     0.55      485      1.13 (    0.75,    1.71)     A                                            
item20            0.03     0.87      485      1.04 (    0.68,    1.57)     A                                            
item21            0.32     0.57      485     -0.03 (   -2.62,    2.54)    AA                                            
item22            0.76     0.38      485     -0.05 (   -2.85,    2.71)    AA                                            
item23            0.00     0.99      485     -0.00 (   -2.53,    2.52)    AA                                            
item24            0.49     0.49      485      0.04 (   -2.54,    2.65)    AA                                            
item25            0.06     0.81      485     -0.01 (   -2.34,    2.32)    AA                                            


              Options    
-----------------------------------
DIF Group Variable: gender              
Focal Group Code: F         
Reference Group Code: M         
Stratification: DECILES        

Elapsed time: 0 secs, 484 msecs