The purpose of this study was to examine the internal reliability, factorial validity, and measurement invariance of a Brazilian-Portuguese version of the General Health Questionnaire-12 (GHQ-12) across clinical and nonclinical groups. The clinical sample consisted of 228 chronic hemodialysis patients (41.7% female), with a mean age of 48.23 (SD =…

The authors proposed the construct of workplace social self-efficacy (WSSE) and developed an inventory to measure it. Two empirical studies were conducted to examine the psychometric properties of this new measure. In Study 1, we described the development of the WSSE inventory and explored its factor structure in a sample of 304 full-time…

The aim of this study is to develop a scale which will describe how education supervisors' behaviours are perceived. Four separate studies have been conducted in order to develop the scale. In the first study the scale that was developed is applied to a working group consisting of 704 teachers. The factor structure of the scale is examined by…

Augustine and Hemenover (2013) were right to state that meta-analyses should be accurate and generalizable. However, we disagree that our meta-analysis of emotion regulation strategies (Webb, Miles, & Sheeran, 2012) fell short in these respects. Augustine and Hemenover's concerns appear to have accrued from misunderstandings of our inclusion…

In May 2008, Ofqual established a two-year programme of research to investigate the nature and extent of (un)reliability within the qualifications, examinations and assessments that it regulated. It was particularly concerned to improve understanding of, and confidence in, this technically complex and politically sensitive phenomenon. The…

This paper discusses the issues involved in calculating indices of composite reliability for "modular" or "unitised" assessments of the kind used in GCSEs, AS and A level examinations in England. The increasingly widespread use of on-screen marking has meant that the item-level data required for calculating indices of…

This article proposes a model-based procedure, intended for personality measures, for exploiting the auxiliary information provided by the certainty with which individuals answer every item (response certainty). This information is used to (a) obtain more accurate estimates of individual trait levels, and (b) provide a more detailed assessment of…

Previous studies have reported that African-American students attending HBCUs consume less alcohol and experience fewer negative consequences compared to students attending other public colleges and universities (Fowler, 2001). Factors such as religion (Kapner, 2008), alcohol-free campus policies (Wechsler, Lee, Gledhill-Hoyt, & Nelson, 2001),…

The review of current supervision models and instruments revealed a crucial need for a valid, reliable instrument that assesses the quality of the supervision environment as a venue for promoting counselor development. Therefore, the primary purpose of this study was the construction and initial validation of the Chae Optimal Supervision…

The aim of this research was to explore the relationship among students' attitudes toward programming, gender and academic achievement in programming. The scale used for measuring students' attitudes toward programming was developed by the researcher and consisted of 35 five-point Likert type items in four subscales. The scale was administered to…

Since heterogeneity between reliability coefficients is usually found in reliability generalization studies, moderator analyses constitute a crucial step for that meta-analytic approach. In this study, different procedures for conducting mixed-effects meta-regression analyses were compared. Specifically, four transformation methods for the…

Extreme response set, the tendency to prefer the lowest or highest response option when confronted with a Likert-type response scale, can lead to misfit of item response models such as the generalized partial credit model. Recently, a series of intrinsically multidimensional item response models have been hypothesized, wherein tendency toward…

Background: In principle, value-added modeling (VAM) might be justified if it can be shown to be a more reliable indicator of teacher quality than existing indicators for existing low-stakes decisions that are already being made, such as the award of small merit bonuses. However, a growing number of researchers now advocate the use of VAM to…

This paper reviews a selected sample of 24 doctoral dissertations in language assessment (broadly defined), completed between 2006 and 2011 in Canadian universities. These dissertations fall into five thematic categories: 1) reliability, validity and factors affecting test performance; 2) washback (impact) and ethics; 3) raters, rating and rating…

The purpose of this study was to examine the validity and reliability of Curriculum-Based Measures in writing for English learners. Participants were 36 high school English learners with moderate to high levels of English language proficiency. Predictor variables were type of writing prompt (picture, narrative, and expository), time (3, 5, and 7…