A nonnormal look at polychoric correlations: modeling the change in correlations before and after discretization. - Hakan Demirtas; Robab Ahmadian; Sema Atis; Fatma Ezgi Can; Ilker Ercan (Comput. Stat., 2016)

Combining binary and continuous biomarkers by maximizing the area under the receiver operating characteristic curve. - Robab Ahmadian; Ilker Ercan; Deniz Sigirli; Abdulmecit Yildiz (Commun. Stat. Simul. Comput., 2022)

Evaluating the sensitive question methods; recommended Uludag Adjustment for the Crosswise Model. - Robab Ahmadian; Ilker Ercan (Commun. Stat. Simul. Comput., 2023)