The purpose of the current study is to determine the general trends in postgraduate theses written on Differential Item Functioning (DIF) in the field of Educational Measurement and Evaluation in Türkiye from 2012 to 2022. To this end, the theses were examined in terms of the type of theses, publication year, which data set was used, according to which variable DIF was examined, which school subjects were used, what the examined school subjects were, which country’s data were used, which DIF detection methods were used and the type of data used. Within the study, a total of 66 graduate theses written in Türkiye from 2012 to 2022 were analysed. As a result of the analysis, it was determined that the theses related to DIF were mostly written in 2019, with master’s and doctoral theses peaking in 2019 and 2016 respectively, that PISA data were frequently used, that the studies predominantly focused on the detection of DIF in relation to the gender variable, that mathematics data were commonly used, and after Türkiye, the United States data were used the most, that the Mantel-Haenszel (MH) method was predominantly used for the detection of DIF and that the studies were conducted using two-category data.

Measurement and evaluation, Differential item functioning (DIF), research trends, content analysis