Extended time on high stakes testing is the most sought out accommodation for individuals with learning disabilities. This accommodation is necessary for many individuals with learning disabilities for a variety of reasons, but often for individuals who have ongoing difficulties with reading fluency. For many students with reading based learning…

This document contains a narrative overview of the hierarchy, followed by a one-page graphic summary. The purpose of the hierarchy is to help agency/program officials assess which study designs are capable of producing scientifically-valid evidence on the effectiveness of a STEM education project or practice ("intervention"). More specifically,…

Background/Context: Technological and economic changes have put a high premium on developing students' information literacy and research skills. Previous attempts to deploy educational technology toward these ends have proved disappointing because K-12 teachers have difficulty integrating shared computers into instruction. In response, numerous…