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Table 2 Differential item functioning of the PAB-S

From: Development and refinement of the Peer Aggressive Behavior Scale–PAB-S

DIF analysis Mantel-Haenszel DIF contrast
Sex (Boys versus girls) Size P = value Magnitude
 Easier for girls    
  Item 4. When someone provokes me, I yell at him/her .11 .021 .33
  Item 16. I ask my friends not to be friends with people I don’t like .08 .016 .37
  Item 20. I leave those I don’t like out of my group -.51 .003 .44
  Item 32. When someone makes me mad, I tell lies about him/her -.78 .017 .19
 Easier for boys    
  Item 8. When someone hits me, I hit him/her back -.81 .000 -.33
  Item 11. When someone makes me mad, I hit him/her -.61 .010 -.26
  Item 28. I call those I don’t like bad names -.98 .001 -.47
Age (7–10 years old versus 11–13 years old) Size P = value Magnitude
 Easier for younger children    
  Item 17. When someone does something bad to me, I ask people to stop talking to her/him -.43 .048 - .28