This three-manuscript dissertation attempts to answer the question: "How does students' English language proficiency (ELP) inform the availability, structure, and use of English language accommodations and intervention to support the academic achievement of English learner (EL) students?" The question is addressed using three independent…

The present study focuses on the integration of an automatic question generation (AQG) system and a computerised adaptive test (CAT). We conducted two experiments. In the first experiment, we administered sets of questions to English learners to gather their responses. We further used their responses in the second experiment, which is a…

This article reports on two quantitative studies of English learners' (ELs) interactions with constructed-response items from a Grade 5 state science test. Study 1 investigated the relationships between the constructed-response item-level variables of English Reading Demand, English Writing Demand, and Background Knowledge Demand and the…

This study explored the interplay between content knowledge and reading ability in a large-scale multistage adaptive English for academic purposes (EAP) reading assessment at a range of ability levels across 1-12 graders. The datasets for this study were item-level responses to the reading tests of ACCESS for ELLs Online 2.0. A sample of 10,000…

Increasing linguistic diversity in classrooms has led researchers to examine the validity and fairness of standardized achievement tests, specifically concerning whether test score interpretations are free of bias and score use is fair for all students. This study examined whether mathematics achievement test items that contain complex language…

Substantial progress has been made toward applying technology enhanced conversation-based assessments (CBAs) to measure the English-language proficiency of English learners (ELs). CBAs are conversation-based systems that use conversations among computer-animated agents and a test taker. We expanded the design and capability of prior…

In this study we investigated how English learners (ELs) interacted with "®" summative English language arts (ELA) and mathematics items, the embedded online tools, and accessibility features. We focused on how EL students navigated the assessment items; how they selected or constructed their responses; how they interacted with the…

This report is an update of the assessment principles and guidelines for English language learners published in 2013 (Thurlow, Liu, Ward, & Christensen). That report, which was developed by the Improving the Validity of Assessment Results for English Language Learners with Disabilities (IVARED) project, presented essential principles of…

This study is part of a larger effort to investigate linguistic features of assessment items that might explain differential performance of English learners on science assessments. An analysis of a large set of multiple-choice items suggested two features that held promise in reducing the performance gap: the presence of contrast words and the…

Reverse engineering (RE) can play an important role in the re-designing tests in L2 English. It can also enrich the aim of teaching the same as raising children through academic achievement. In addition, it can play a key role in helping students understand how much their test is valid by using Standard reverse engineering (SRE). This paper is a…

In this article we explore the use of pictorial glossaries as an accommodation for English learners (ELs) with entry and emerging levels of English language proficiency. Drawing on survey responses from 98 middle school ELs and cognitive interviews with 10 of the survey participants, we examined the participants' preferences and experiences with…

This article investigates ways to improve the assessment of English learner students' English language proficiency given the current movement of creating next-generation English language proficiency assessments in the Common Core era. In particular, this article discusses the integration of scaffolding strategies, which are prevalently utilized as…

Reading-to-write (RTW) tasks are becoming increasingly popular and have already been used in several high-stakes English proficiency exams, either replacing or complementing a prompt-based essay test. However, it is still not clear that what accounts for successful or unsuccessful performance on an integrated reading-writing task is owing to the…

The importance of listening in the context of English language acquisition is gaining acceptance, but its unique attributes in language performance, while substantively and qualitatively justifiable, are generally not psychometrically defined. This article psychometrically supports listening as a distinct domain among the three other domains of…

The current focus across the U.S. on student college and career readiness standards makes clear that both instruction and assessment of academic English will continue to be important for school-age English learner (EL) students. This article presents an overview and summary of key literature on academic language (usually academic English);…