The current study examines three regression models: OLS (ordinary least square) linear regression, Poisson regression, and negative binomial regression for analyzing count data. Simulation results show that the OLS regression model performed better than the others, since it did not produce more false statistically significant relationships than…

Factor analysis models with ordinal indicators are often estimated using a 3-stage procedure where the last stage involves obtaining parameter estimates by least squares from the sample polychoric correlations. A simulation study involving 324 conditions (1,000 replications per condition) was performed to compare the performance of diagonally…

A variety of cognitive diagnosis approaches (CDAs) have been used by researchers to extract fine-grained information about the linguistic knowledge states and skill mastery levels of test takers based on their performance on language tests. Although some of these approaches have been in use in the psychometric community for quite some time, many…

We report the results of a study with 30 teachers designed to examine the effects of teacher knowledge on the achievement of struggling readers. We worked with teachers of grades three, four, and five during a 10-day intervention focused on literacy instruction and related linguistic knowledge, and we assessed their students' learning across the…

In their paper "Unique Characteristics of Diagnostic Classification Models: A Comprehensive Review of the Current State-of-the-Art," Andre Rupp and Jonathan Templin (2008) provide a comparative analysis of selected psychometric models useful for the analysis of multidimensional data for purposes of diagnostic score reporting. Recent assessment…

Background/Context: More than a century before modern controversies over scripted instruction, the Froebelian kindergarten--the original kindergarten method designed by Friedrich Froebel--and Maria Montessori's pedagogy were criticized for rigidly prescribing how teachers taught and children learned. Today, scripted methods such as Direct…

This study employed a unique theoretical approach and a series of participant-based ethnographic interviewing techniques that are traditionally used in cognitive anthropology to examine and compare social work and anthropology students' cultural models of the causes of domestic violence. The study findings indicate that although social work…

Model-based testing is one of the best solutions for testing object-oriented software. It has a better test coverage than other testing styles. Model-based testing takes into consideration behavioural aspects of a class, which are usually unchecked in other testing methods. An increase in the complexity of software has forced the software industry…

In this article, the authors explored the existence of across-notation automatic numerical processing using size comparison and same-different paradigms. Participants were Arabic speakers, who used 2 sets of numerical symbols--Arabic and Indian. They were presented with number pairs in the same notation (Arabic or Indian) or in different ones…

Psycholinguistic data are often analyzed with repeated-measures analyses of variance (ANOVA), but this paper argues that mixed-effects (multilevel) models provide a better alternative method. First, models are discussed in which the two random factors of participants and items are crossed, and not nested. Traditional ANOVAs are compared against…

This study investigated the effect of dynamic assessment on learners' syntactic knowledge. The main concern of this study was significant difference between dynamic and static assessment and the possible role of these two forms of assessment on the syntactic development of Iranian EFL college preparatory learners. To fulfill the purpose of the…

The purpose of this paper is to offer an analytic perspective to policy makers and educational practitioners regarding how to use longitudinal achievement data to evaluate schools. The authors further discuss the potential practical applications of their models for superintendents, researchers, and policy makers. The premise of the study is that…

This study was designed to determine whether the inclusion model of instruction with the use of assistive technology was more effective in delivering instruction to regular education students and special needs students in the same classroom in comparison to the regular education with pull-out model of instruction. I also attempted to determine…

While there is some evidence of long-term social benefits from early childhood educational interventions conducted in socially disadvantaged populations in the USA, there is limited evidence of similar benefits in different populations and countries. This study examined a range of social outcomes of adults aged 34-67 years who, between 1940 and…

This paper presents the results obtained from a study comparing the strategies used by 1,070 Chinese students and 1,002 Singaporean students from primary grade 6 to secondary year 2 in solving three fraction-related problems. It is part of the author's Ph.D. study, which involves more word problems on speed. The Chinese students performed better…