Given the significance of the test fairness, this study aimed to investigate a reading comprehension test for evidence of differential item functioning (DIF) based on English as a Foreign Language (EFL) learners' gender and their mode of learning (conventional vs. distance learning). To this end, 514 EFL learners were asked to take a 30-item…

This study aimed to examine the effect of test format on test performance by comparing Multiple Choice (MC) and Constructed Response (CR) vocabulary tests in an EFL setting. Also, this paper investigated the function of gender in MC and CR vocabulary measures. To this end, five 20-item stem-equivalent vocabulary tests (CR, and 3-, 4-, 5-, and…

The current study sought to examine the validity of a General English Achievement Test (GEAT), administered to university students in the fall semester of 2018-2019 academic year, by hybridizing differential information (DIF) and differential distractor function (DDF) analytical models. Using a purposive sampling method, from the target population…

Background: This study aims to empirically answer the question of whether the role of sub-reading skills changes depending on the test format (e.g., multiple-choice vs. open-ended reading questions). The test format effect also addresses the issue of test validity--whether the reading test properly elicits construct-relevant reading skills or…