Major Research Monographs
Thomas, W. P., & Collier, V.P. (2014). English learners in North Carolina Dual Language Programs: Year 3 of this study: School Year 2009-2010. Raleigh, NC: North Carolina Department of Public Instruction. website
Thomas, W.P., Collier, V.P., & Collier, K. (2011). English learners in North Carolina, 2010. Raleigh, NC: North Carolina Department of Public Instruction. website
Thomas, W.P., & Collier, V.P. (2010). English learners in North Carolina, 2009. Raleigh, NC: North Carolina Department of Public Instruction. website
The Thomas & Collier 2002 national study, funded by the U.S. Department of Education:
Thomas, W.P., & Collier, V.P. (2002). A national study of school effectiveness for language minority students' long-term academic achievement. Santa Cruz, CA: Center for Research on Education, Diversity and Excellence, University of California-Santa Cruz (351 pp.) PDF
The Thomas & Collier 1997 national study:
Thomas, W.P., & Collier, V.P. (1997). School effectiveness for language minority students. Washington, DC: National Clearinghouse for English Language Acquisition (NCELA) Resource Collection Series, No. 9, December, 1997 (96 pp.) PDF
Collier, V.P. (1980). A sociological case study of bilingual education and its effects on the schools and the community. Dissertation Abstracts International, 41, 2481A. (Doctoral dissertation, available from the University of Southern California, 304 pp.)
Thomas, W.P. (1980). Incremental effects of ESEA Title I resources on student achievement. Dissertation Abstracts International, 41, 1945A. (Doctoral dissertation, Virginia Polytechnic Institute and State University, University Microfilms No. 8024018).