Growth Research Database
Quality Data on a Grand Scale
With more than 4.5 billion pairs of test items and responses collected over more than 12 years, the Growth Research Database (GRD) is the hub of NWEA's research, and the most extensive collection of student growth data in the country. The high quality of the data and the database size makes the GRD immensely valuable to researchers and others interested in the study of student achievement.