The development of assessments as part of the funded LOCUS project is described. The assessments measure students' conceptual understanding of statistics as outlined in the GAISE PreK-12 Framework. Results are reported from a large-scale administration to 3,430 students in grades 6 through 12 in the United States. Items were designed to assess…

First Language (L1) has been assumed to play a role in Second Language ability (Bachman & Palmer, 1996). However, the interplay between them across skill, task, or scoring criteria is more complex (Hamp-Lyons & Davies, 2008). Using Many-Facets Rasch Measurement, this study investigates the main effects of examinee ability, rater severity,…

This study was carried out in order to determine how the 3rd grade students of the Department of Elementary Mathematics Education structured their "if and only if propositions". The data were obtained by examining the students' answers given to the midterm exam questions and discussing the solutions with the students in the classroom.…

This report describes an activity that helps organic chemistry students to better understand organic molecules as 3-dimensional objects. To accomplish this goal, the activity employs a unique three-way combination of analyzing computer-generated 3-dimensional renditions of open access X-ray crystallography data, building physical 3-dimensional…

Within the framework of cognitive load theory, the element interactivity and the expertise reversal effects usually are not treated as closely related effects. We argue that the two effects may be intertwined with the expertise reversal effect constituting a particular example of the element interactivity effect. Specifically, the element…

This study aimed to compare item characteristics and response time between stimulus conditions in computer-delivered listening tests. Listening materials had three variants: regular videos, frame-by-frame videos, and only audios without visuals. Participants were 228 Japanese high school students who were requested to complete one of nine…

While contemporary mathematics education literature argues that curricular resources, such as textbooks, play a significant role guiding mathematics teachers in what and how they teach, it also shows that these resources often do not do what they say they will do, nor adhere to the standards they claim to further. When it comes to the most…

The pervasive use of synchronous computer-mediated communication (SCMC) in second language (L2) learning has generated increasing interest among researchers in integrating SCMC with task-based language teaching (TBLT). This study examined the effects of task complexity on Chinese EFL learners' language production in SCMC modality to develop…

For most graduate writers, acclimating to doctoral-level inquiry is fraught with numerous tensions, whether regarding the development of scholarly identity (Gardner et al., 2014), navigating graduate school's newly decentralized sources for support (Simpson, 2012), or mastering the writing and research conventions that govern disciplinary…

The present study investigated how Cantonese speakers learning English as a second language (L2) would comprehend English irony and whether their L2 proficiency and use would moderate their irony processing. Thirty Cantonese speakers with differing English proficiency (intermediate vs advanced) were asked to complete an irony comprehension task in…

This paper is based within the framework of step-by-step approach to teaching legal translation. The underlying philosophy behind this approach is that when specific aspects of legal translations are tackled in isolation and trainees become aware of the pitfalls involved and the possible solutions, this helps them in further training as well as in…

Large scale international assessments depend on invariance of measurement across countries. An important consideration when observing cross-national differential item functioning (DIF) is whether the DIF actually reflects a source of bias, or might instead be a methodological artifact reflecting item response theory (IRT) model misspecification.…

Reading is regarded as one of the basic learning processes that provides multiple skills and abilities for daily life. The study reported on here arose from evidence of reading comprehension difficulties of middle school students in Colombia, and from reflection on the didactic strategies used for the promotion and teaching of reading. The purpose…

Wave optics is a mandatory part of Croatian secondary school physics curriculum for students in the final year of secondary school (age 18-19). Many physics education research studies have shown that it is a difficult physics topic for both university and secondary school students. An inquiry-based teaching sequence on wave optics, designed for…

Analyzing heterogeneous treatment effects (HTE) plays a crucial role in understanding the impacts of educational interventions. A standard practice for HTE analysis is to examine interactions between treatment status and pre-intervention participant characteristics, such as pretest scores, to identify how different groups respond to treatment.…