“…First, 48 (56.47%) studies were sorted into Category A (studies that have not examined sources of DIF/lack of measurement invariance). Studies from Category A are those that detected items with DIF but did not perform any further analysis, that eliminated items with DIF from further analyses (e.g., Cheng et al, 2011, p. 205: “Once an item with substantial DIF was identified, it would be removed from further analysis”), and that met measurement invariance or did not encounter items with DIF (e.g., Seo et al, 2016, p. 55: “There were no items indicative of DIF between boys and girls”). Then, six (7.06%) studies were sorted into Category B, because they mentioned sources of DIF/lack of measurement invariance but did not examine them (e.g., Lyons-Thomas et al, 2014, p. 29: “One future direction of this study, or any of those which examine gender DIF, would be to investigate sources of DIF”).…”