Raccah D, Guerci B, Ajmera M, Davis K, Meyers J, Lew E, Shaunik A, Blonde L. Clinical implications of prolonged hyperglycaemia before basal insulin initiation in type 2 diabetes patients: an electronic medical record database analysis. Endocrinol Diabetes Metab. 2019 Mar 28;2(3):e00061. doi: 10.1002/edm2.61
Williams VSL. The "unbiased" anchor: bridging the gap between DIF and item bias. Appl Meas Educ. 1997;10(3):253-67. doi: 10.1207/s15324818ame1003_4