As a high-stakes standardized test, IELTS is expected to have comparable forms of test papers so that test takers from different test administration on different dates receive comparable test scores. Therefore, this study examined the text difficulty and task characteristics of four parallel academic IELTS reading tests to reveal to what extent…

The International English Language Test System (IELTS) is one of the most reputable English tests that is used to assess the language proficiency of those who intend to study or work in an English speaking context. It is one of the most largescale proficiency tests which affects the lives of many students, as well as immigrants as the results of…