Thomas & Collier Research

Thomas & Collier Research

There is a considerable body of research that outlines the benefits of dual language/immersion (DL/I) programs for students, including:

  • higher academic performance,
  • greater cognitive development in mental flexibility, creativity, and divergent thinking,
  • high levels of proficiency in the target language and in English,
  • positive cross-cultural attitudes and behaviors, and
  • enhanced career opportunities.

The Thomas and Collier DL/I longitudinal studies were done in North Carolina by Professors Emeritus at George Mason University, Dr. Virginia Collier and Dr. Wayne Thomas. This research documents how being in a DL/I program benefits all students and how this can close the achievement gap.

Please see the details below about the Thomas & Collier studies, including the annual reports and information about the study shared in books and presentations.

Executive Summaries

Year 1 (2007 - 2008)

Year 2 (2008 - 2009)

Year 3 (2009 - 2010)

Each executive summary is 3 pages long. The most comprehensive executive summary to share with policymakers is Year 3 (2009 - 2010).

Chapter 5

"Astounding Effectiveness - The North Carolina Story" was included as Chapter 5 in Thomas & Collier's book, Dual Language Education for a Transformed World

Chapter 5 Excerpt

Published graphs from NC Study