Skip to main content
. 2014 Aug 25;39(2):83–103. doi: 10.1177/0146621614544195

Figure 4.

Figure 4.

Condition of unbalanced DIF with 45% DIF items favoring the reference group; sample size ranges from (250; 250) to (1,500; 1,500); left: the scale shift when the anchor is contaminated; right: the scale shift in case of pure anchors.

Note. DIF = differential item functioning; AO = all-other selection; SA = single-anchor selection; NC = next candidate selection.