The authors center their presentation of material around a conceptual understanding of psychometric issues, such as validity and reliability, and on purpose rather than procedure, the "why" rather than the "how to." Their goal is to introduce psychometric principles at a level that is deeper and more focused than found in introductory…

Basic principles that should be followed by anyone developing a scale are reviewed, with emphasis on verbally mediated measures. The essential first step is a clear conceptualization of the target construct. Item development and ensuring unidimensionality follow. Factor analysis can be crucial in establishing unidimensionality and discriminant…

To date, little work has been done to ensure limited English proficient (LEP) students are accurately assessed on a large scale. The purpose of this guide is to help scorers in high volume situations to be able to effectively evaluate the open-ended responses of this population. Section one of this guide presents a brief overview of the State…

The development, norming, and validation of the Preschool Behavior Questionnaire (PBQ) are described. The questionnaire was developed to be a screening instrument for use by mental health professionals for the early detection of children's behavior problems. The scale was standardized on a group of preschoolers aged three to six, including male…