The authors of this position paper argue that there is currently very little evidence-based practice in relation to learners with severe learning disabilities (SLD) and profound and multiple learning disabilities (PMLD), and that which there is, has often been badly used and/or abused. More specifically, we argue that relevant educational research…

Proxies typically serve as information providers in studies of persons with intellectual disabilities. However, little is known about the concordance between different proxy categories and how proxy characteristics influence the information provided. We compared 89 pairs of relative and staff reports on the living conditions of persons with…

This paper reviews criticism on misinterpretation and overuse of significance testing in the social sciences and examines use of effect size measures to enhance interpretation of significance testing. Review of typical effect size measures and their application is followed by analysis of use of effect size measures in studies reported over 10…

A study has been examining current directions in state education agency efforts to reform the elementary school language arts curriculum in four large, geographically diverse states with different policy mechanisms--California, New York, Wisconsin, and Texas. To understand policy development and implementation and discern how advocates advance a…

The Alliance for Career and Vocational Education is a consortium of school districts that was formed by the National Center for Research in Vocational Education so participating districts could pool resources and address common needs in career and vocational education. Through the Alliance, career exploration, awareness, and planning materials…