Effect sizes are powerful tools for evaluating the practical importance of study findings that should be considered in the context of study characteristics such as participants, dependent variables, and comparison condition. In this article, we discuss how group-difference effect sizes are used to gauge the practical importance of group…

The articles in this special issue of the "Journal of Applied Testing Technology" represent significant steps forward in the area of evaluating the validity of methods for assessing the educational achievement of students with disabilities. The studies address some of the most difficult student groups to assess--students with learning…

Analysis of 113 studies revealed that researchers most often selected their learning disabled sample on the bases of academic, age and sex, and intelligence components. Less than half used the process or exclusion components or included a description of grade placement. (CL)

With its roots in clinical and educational psychology, school psychology is an ever-changing field that encompasses a diversity of topics. "The Oxford Handbook of School Psychology" synthesizes the most vital and relevant literature in all of these areas, producing a state-of-the-art, authoritative resource for practitioners,…

There is little doubt that intervention research based on metacognitive principles has been remarkably successful in improving children's performance on a range of academic tasks. However, to build on this success, at least three modifications need to be made in the way metacognition is usually thought about. First, more attention needs to be…

Because of criticisms leveled at statistical hypothesis testing, some researchers have argued that measures of effect size should replace the significance-testing practice. We contend that although effect-size measures have logical appeal, they are also associated with a number of limitations that may result in problematic interpretations of them…

The No Child Left Behind Act of 2001 (NCLB) requires the reporting of participation in assessments overall and by subgroup, including students with disabilities. As states and school districts strive to meet the goals for adequate yearly progress required by NCLB, the use of individual accommodations continues to be scrutinized for effectiveness,…

This paper discusses dynamic/interactive approaches to psychological assessment based on the concept of induced change as a research tactic. Studies are reviewed showing how interactive assessment has yielded new knowledge in psychopathology; neuropsychology; learning disabilities; intelligence testing (in normal, deaf, and immigrant children);…

The use of the systems approach in educational inquiry is not new, and the models of input/output, input/process/product, and cybernetic systems have been widely used. The general systems model is an extension of all these, adding the dimension of environmental influence on the system as well as system influence on the environment. However, if the…

Articles in this volume focus on the following: teacher evaluation and quality management in education; steps toward a comprehensive and systematic staff evaluation; opinions of university students on teaching methods at science faculties; design of a scale to assess the ability to jump for the use in elementary school physical education; effects…