Twin factor mixture modeling was used to identify temperament profiles while simultaneously estimating a latent factor model for each profile with a sample of 787 twin pairs (M[subscript age] = 7.4 years, SD = 0.84; 49% female; 88.3% Caucasian), using mother- and father-reported temperament. A four-profile, one-factor model fit the data well.…

We compared six different analytic models for multitrait-multimethod (MTMM) data in terms of convergence, admissibility, and model fit to 258 samples of previously reported data. Two well-known models, the correlated trait-correlated method (CTCM) and the correlated trait-correlated uniqueness (CTCU) models, were fit for reference purposes in…

The structural validity of the "Wechsler Intelligence Scale for Children-Fourth Edition" (WISC-IV) was evaluated using confirmatory factor analysis for a clinical sample of 1,537 students diagnosed with specific learning disabilities (SLD) by school psychologists in two large southwestern school districts. Results indicated that a…

The aim of this study was to test the gender invariance of the Chinese version of the Achievement Goal Questionnaire (AGQ-C) utilizing a sample of 1,115 Chinese university students. Multi-group confirmatory factor analysis supported the configural, metric, and scalar invariance of the AGQ-C across genders. Analyses also revealed that the latent…

In their 2016 work, Aguirre-Urreta et al. provided a contribution to the literature on causal measurement models that enhances clarity and stimulates further thinking. Aguirre-Urreta et al. presented a form of statistical identity involving mapping onto the portion of the parameter space involving the nomological net, relationships between the…

Individuals express their creativity through a variety of thinking and creating styles (Wechsler, 2006, 2007). These constructs underlie the Thinking and Creating Styles Scale (TCSS), which is used to identify individuals' creating styles. The aim of this research is to assess the factorial structure of the Portuguese version of the TCSS. Two…

Recent widespread implementation of service-learning initiatives reflects increased commitment to civic engagement and service in higher education. Data regarding students' diverse orientations to service could be a powerful tool to inform thoughtful development of differentiated service-learning opportunities, contributing to better alignment and…

Remote association requires players to use their mental transformation to identify objects' relationships by activating knowledge application. A Chinese Remote Association game was designed (example question: [characters omitted], where the answer is [character omitted]) to explore learners' cognitive and affective effects, and then eighth grade…

This study examined the interplay among self-confidence, teacher feedback, and English proficiency in terms of developing students' English oral presentation competence. The study involved learners in the fields of Sciences and Technology, and Humanities and Social Science (N=390; 75% female; 26% male). It looked at how presentation courses, which…

The structure of academic achievement measures has been rarely investigated in the literature apart from that which appears in the instruments' technical manuals. This is concerning, given the widespread use of academic achievement instruments when making educational decisions about children. The Woodcock-Johnson III (WJ-III) Achievement for…

Purpose: The purpose of this study is to investigate the structure and measurement properties of the Aphasia Communication Outcome Measure (ACOM), a patient-reported outcome measure of communicative functioning for persons with aphasia. Method: Three hundred twenty-nine participants with aphasia responded to 177 items asking about communicative…

This article introduces an item factor analysis (IFA) module for "OpenMx," a free, open-source, and modular statistical modeling package that runs within the R programming environment on GNU/Linux, Mac OS X, and Microsoft Windows. The IFA module offers a novel model specification language that is well suited to programmatic generation…

Purpose: This study aims to investigate the relationship between nonverbal cognitive functions and language processing of people with aphasia (PWA) by taking a data-driven approach, as well as multiple cognitive components and multilevel linguistic perspectives. It is hypothesized that language performance is differentially associated with…

This study investigates Spolsky's conception of language policy as the amalgam of language beliefs, language practices and language management. To the best of our knowledge, no quantitative evidence has ever been produced for his theoretical model. The current paper addressed this void, albeit specifically in the domain of Early Childhood Care and…

Existing studies have defined and assessed disciplinary literacy, mathematical literacy, and general academic language. However, there is a need to define and assess mathematics discipline-specific language (MDL), particularly for elementary school teachers. Therefore, the purpose of this study was to develop a research instrument to assess the…