Recently organizations have begun to realize the potential value in the huge amounts of raw, constantly fluctuating data sets that they generate and, with the help of advances in storage and processing technologies, collect. This leads to the phenomenon of big data. This data may be stored in structured format in relational database systems, but…

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…

This paper presents the Ohio edition of the National Council on Teacher Quality's 2008 "State Teacher Policy Yearbook". The 2008 "Yearbook" focuses on how state policies impact the retention of effective new teachers. This policy evaluation is broken down into three areas that encompass 15 goals. Broadly, these goals examine…

With the passage of the No Child Left Behind Act (NCLB), state education agencies (SEAs) and local educational agencies (LEAs) have stepped up activities to broadly expand their data collection and reporting systems. The Data Quality Campaign (DQC) has advocated strongly for states to build robust student-level longitudinal data systems based on…