The current Situational Space Awareness (SSA) is faced with a huge task of tracking the increasing number of space objects. The tracking of space objects requires frequent and accurate monitoring for orbit maintenance and collision avoidance using methods for statistical orbit determination. Statistical orbit determination enables us to obtain…

The issue of measurement invariance commonly arises in factor-analytic contexts, with methods for assessment including likelihood ratio tests, Lagrange multiplier tests, and Wald tests. These tests all require advance definition of the number of groups, group membership, and offending model parameters. In this paper, we study tests of measurement…

This article reports the validation of the Chinese version of an expanded 31-item Euthanasia Attitude Scale. A 4-stage validation process included a pilot survey of 119 college students and a randomized household survey with 618 adults in Hong Kong. Confirmatory factor analysis confirmed a 4-factor structure of the scale, which can therefore be…

The main aim of the present study was to empirically test the emergence of the Simple View of Reading (SVR) in a transparent orthography, and specifically in Greek. To do so, we examined whether the constituent components of the SVR could be identified in young, Greek-speaking children even before the beginning of formal reading instruction. Our…

An on-going debate surrounds the relationship between specific language impairment and developmental dyslexia, in particular with respect to their phonological abilities. Are these distinct disorders? To what extent do they overlap? Which cognitive and linguistic profiles correspond to specific language impairment, dyslexia and comorbid cases? At…

Lee Cronbach once expressed the view that all roads lead to construct validity. In looking to clarify the consensus definition of validity, and its place in assessment, Newton is also led to the troublesome idea of construct validity. To be sure, he addresses other validity issues, but in this commentary, I will restrict my attention to construct…

The development of employee expertise is described as a strategic imperative for ever-changing organizations in a hyper-competitive economic environment. However, the lack of an adequate assessment tool for expertise has hindered empirical research. This paper conceptually and empirically develops the generalized expertise measure (GEM) and…

The structures and processes that provide a context favorable to commoditization are sedimented into our lives so that they become taken-for-granted and apparently unproblematic aspects of the cultural scenery. Language, economic "realities," our styles of thought and categorization, education, the infrastructure we inhabit, and subjectivity…

This simulation study investigated the sensitivity of commonly used cutoff values for global-model-fit indexes, with regard to different degrees of violations of the assumption of uncorrelated errors in confirmatory factor analysis. It is shown that the global-model-fit indexes fell short in identifying weak to strong model misspecifications under…

In the present study, we examine the personal belief in a just world (PBJW) for teachers and learners in predominantly Afrikaans-speaking South African schools, and the relationship between teachers' PBJW and their perception of problem behaviour in the classroom. The study is informed by national debates of school violence in South African…

The aim of this study is to explore what aspects the principals and the members of the management teams in the primary and upper secondary education schools in Vantaa support distributed leadership in their school and how necessary they see that distributed leadership is extended to the students in matters concerning the curriculum and the…

Purpose: The purpose of this paper is to investigate the impact of antecedent factors on collaborative technologies usage among academic researchers in Malaysian research universities. Design/methodology/approach: Data analysis was conducted on data collected from 156 academic researchers from five Malaysian research universities. This study…

Using an expectancy-value framework, the present investigation is the first to explore the generality of this theorizing and research in the emerging regional context of the Caribbean. Given high underachievement in the Caribbean region, we addressed the need to better understand the role of engagement in students' academic motivation and…

Second language (L2) request production has long been a central area of inquiry in interlanguage pragmatics, including how L2 learners mitigate their requests and whether such strategies correspond to or differ from those of first language (L1) speakers. Methodologically, such research often involves elicited speech and tends to isolate the speech…

When faced with excessive detail in an online environment, typical users have difficulty processing all the elements of representation. This in turn creates cognitive overload, which narrows the user's focus to a few select items. In the context of e-learning, we translated this aspect as the learner's demand for a system that facilitates the…