Mixture Rasch (MixRasch) models conventionally assume normal distributions for latent ability. Previous research has shown that the assumption of normality is often unmet in educational and psychological measurement. When normality is assumed, asymmetry in the actual latent ability distribution has been shown to result in extraction of spurious…

The purpose of this study is to develop a valid and reliable scale to measure the team perception levels of choir members. In the first step, a draft scale comprising 54-items was administered to 332 choir members. With the KMO (Kaiser-Meyer-Olkin) test for sampling adequacy, KMO value was found to be 0.936. Factor analysis on the scale items…

Purpose: This study aimed to compare the performance of latent class differential item functioning (DIF) approach and IRT based DIF methods using manifest grouping. With this study, it was thought to draw attention to carry out latent class DIF studies in Turkey. The purpose of this study was to examine DIF in PISA 2015 science data set. Research…

In this study, it was aimed to develop a valid and reliable scale to determine the teaching styles of teachers. The final scale composed of 44 items were applied to the 605 teachers with various branches. Participants are teachers who are working in private and public schools in the province of Hatay. This study is one of the types of quantitative…

In view of the ubiquitous increase in the use of C-tests, which are almost unanimously believed to measure general language proficiency, this study investigates whether the aspects of language proficiency tapped into by the C-test format are the same when the test is taken by a learner population other than that of foreign language learners.…

More than three decades after their introduction, diagnostic classification models (DCM) do not seem to have been implemented in educational systems for the purposes they were devised. Most DCM research is either methodological for model development and refinement or retrofitting to existing nondiagnostic tests and, in the latter case, basically…

The item responses of examinees who rapid-guess, who do not spend enough time reading and engaging with an item, will not reflect their true ability on that item. Rapid-disengagement refers to rapidly selecting a response to multiple-choice items (i.e., rapid-guess), omitting items, or providing short-unrelated answers to open-ended items in an…

Background: The self-concept of children has an impact on later behavioural development and psychopathology; therefore, evidence of the accurate measurement of self-concept is important. Harter and Pike's (1984, "Child Development," 55, 1969) commonly used measure of self-concept, the Pictorial Scale of Perceived Competence and Social…

The purpose of this report is to provide a synthesis of the research on K-12 testing accommodations. In this report, we summarize the research published in 2017. Previous reports by NCEO have covered research published since 1999. During 2017, 14 research studies were published on the topic of testing accommodations in the elementary and secondary…

The present study leveraged advances in automated essay scoring (AES) technology to explore a proof of concept for a writing screener using the "Project Essay Grade" (PEG) program. First, the study investigated the extent to which an AES-scored multi-prompt writing screener accurately classified students as at risk of failing a Common…

South African universities have one of the lowest graduation rates in the world, especially amongst first-year university students. South Africa's first-year university students are taxed with tremendous challenges. One of the most important amongst these challenges is considered to be academic motivation, which is strongly related to students'…

This paper addresses three areas. The first is a discussion of the context for doctoral education and the use of vivas across higher education as the assessment method for doctoral education. The second area is a review of the data on submissions for doctoral examination across a post-92 university. The findings of the paper are based on a review…

National large-scale assessments (NLSA) have spread rapidly since the 1990s, but contrary to arguments of diffusion theories, not every country with large-scale assessments develop test-based accountability (TBA). The diverse-case comparison presented in this article demonstrates that the interaction between global pressures and domestic policy…

We propose new methods for identifying and classifying aberrant response patterns (ARPs) by means of functional data analysis. These methods take the person response function (PRF) of an individual and compare it with the pattern that would correspond to a generic individual of the same ability according to the item-person response surface. ARPs…

Given the range of pre-exposure prophylaxis (PrEP) products currently being tested to prevent HIV in women, a standardized Acceptability and Use of PrEP Products Among Women Tool may facilitate comparisons of product acceptability and use across different geographies, trials, and users. We conducted three rounds of cognitive interviewing over…