Over the past decade, the LLAMA language aptitude test battery has come to play an increasingly important role as an instrument in research on individual differences in language development. However, a potentially serious problem that has been pointed out by several scholars is that the LLAMA has not yet been carefully validated. We addressed this…

This study focused on the development of the Problem-Solving Team Effectiveness Scale, a measure used by practitioners to assess the professional learning of a problem-solving team (PST) engaging in the technical aspects of intervention selection, implementation, and evaluation. Several best practices by PSTs were initially identified through a…

Exploratory factor analysis (EFA) is a data reduction technique used to condense data into smaller sets of summary variables by identifying underlying factors potentially accounting for patterns of collinearity among said variables. Using an illustrative example, the 5 general steps of EFA are described with best practices for decision making…

Driven by the need to understand placement quality indicators in action, the Clinical Placement Quality Survey--Student (CPQS-S) is a psychometrically robust survey designed to evaluate allied health students' perception of placement. The CPQS-S was developed and validity established through the consensus of an interprofessional expert panel (n =…

Teachers are key players in efforts to address school bullying and peer victimization. Recent studies found that teachers' responses to peer victimization can vary based on their beliefs and attitudes. We examined relations among teacher self-efficacy, teachers' intentions to use recommended antibullying practices, and peer victimization as rated…

Although coaching is a popular approach for enhancing the quality of Tier 1 instruction, limited research has addressed observational measures specifically designed to focus coaching on evidence-based practices. This study explains the development of the prekindergarten (pre-k) Classroom Observation Tool (COT) designed for use in a data-based…

Childhood obesity remains a problem in the United States. Preschool teachers can help to attenuate it but need to have the confidence or self-efficacy to provide healthy practices. Therefore, the purpose of this study was to (a) develop and validate a preschool teacher self-efficacy tool to examine teachers' confidence in addressing the nutrition…

Previous systematic reviews indicate a lack of reporting of reliability and validity evidence in subsets of the medical education literature. Psychology and general education reviews of factor analysis also indicate gaps between current and best practices; yet, a comprehensive review of exploratory factor analysis in instrument development across…