In sociolinguistic contexts where standardized languages coexist with regional dialects, the study of differential item functioning is a valuable tool for examining certain linguistic uses or varieties as threats to score validity. From an ecological perspective, this paper describes three stages in the study of differential item functioning…

Expert judgement has been frequently employed with reading assessments to gauge the skills potentially measured by test tasks, for purposes such as construct validation or producing diagnostic information. Despite the critical role it plays in such endeavours, few studies have triangulated its results with other types of data such as reported…

Technology-enhanced items (TEIs) are innovative, computer-delivered test items that allow test takers to better interact with the test environment compared to traditional multiple-choice items (MCIs). The interactive nature of TEIs offer improved construct coverage compared with MCIs but little research exists regarding students' performance on…

It is not unusual for tests in less-commonly taught languages (LCTLs) to be developed by an experienced item writer with no proficiency in the language being tested, in collaboration with a language informant who is a speaker of the target language, but lacks language assessment expertise. How this approach to item writing works in practice, and…

Reading comprehension is often treated as a multidimensional construct. In many reading tests, items are distributed over reading process categories to represent the subskills expected to constitute comprehension. This study explores (a) the extent to which specified subskills of reading comprehension tests are conceptually conceivable to…

Cognitive diagnosis models (CDMs) are psychometric models developed mainly to assess examinees' specific strengths and weaknesses in a set of skills or attributes within a domain. By adopting the Generalized-DINA model framework, the recently developed general modeling framework, we attempted to retrofit the PISA reading assessments, a…

Methods for detecting differential item functioning (DIF) and item bias are typically used in the process of item analysis when developing new measures; adapting existing measures for different populations, languages, or cultures; or more generally validating test score inferences. In 2007 in "Language Assessment Quarterly," Zumbo…

In the last 15 years or so, language testing practitioners have increasingly favored assessing vocabulary in context. The discrete-point vocabulary measure used in the old version of the Test of English as a Foreign Language (TOEFL) has long been criticized for encouraging test candidates to memorize wordlists out of context although test items…

The Common European Framework of Reference (CEFR) is intended as a reference document for language education including assessment. This article describes a project that investigated whether the CEFR can help test developers construct reading and listening tests based on CEFR levels. If the CEFR scales together with the detailed description of…

Lifelong learning has become an important goal of education over the last decade. According to the United States Department of Education (2001), nearly 3 million students over age 17 (excluding those institutionalized) enrolled in adult basic education, adult secondary education, or English as a second language classes in the United States.…