As reviewed in my previous article, the majority of studies on measurement bias, either on the item- or subtest-level, reached an agreement about the fairness of IQ test. Unfortunately, even among studies which use acceptable Differential Item Functioning (DIF) methods, the procedure was often sub-optimal. This probably leads to more spurious DIFs being detected.
"This online calculator can give us our p-value, by just entering the χ² (here, -2LL) difference and the df (difference in number of variables between the models)."
Sorry I will try to fix that later today. A great portion of this article was written in 2014 (but I lost the motivation to finish it). This includes the passage you cited. So I haven't checked every links.
"This online calculator can give us our p-value, by just entering the χ² (here, -2LL) difference and the df (difference in number of variables between the models)."
https://www.danielsoper.com/statcalc3/calc.aspx?id=11
the page is down
Sorry I will try to fix that later today. A great portion of this article was written in 2014 (but I lost the motivation to finish it). This includes the passage you cited. So I haven't checked every links.
kudos for that! Hard for the hammer of inspiration to strike in the same place twice.