Many states collect data on students and teachers, but linking teachers to students by course--the teacher-student data link (TSDL)--at the state level is critical to understanding the connection between student academic growth and teacher training, qualifications, and practice. This roadmap discusses the six key areas DQC recommends focusing on…

What is the impact of garden-based learning on academic outcomes in schools? To address this question, findings across 152 articles (1990-2010) were analyzed resulting in 48 studies that met the inclusion criteria for this synthesis. A review template with operational coding framework was developed. The synthesis results showed a preponderance of…

Social validity refers to participants' perceptions regarding the goals, procedures, and effects of a practice. The collection and report of social validity data can serve an important role in understanding, and possibly remedying, obstacles affecting the successful adoption of empirically based practices by the field. Studies published between…

The "PISA 2009 Technical Report" describes the methodology underlying the PISA 2009 survey. It examines additional features related to the implementation of the project at a level of detail that allows researchers to understand and replicate its analyses. The reader will find a wealth of information on the test and sample design,…