References

Met WWC evidence standards with reservations

EDSTAR, Inc. (2004). Large-scale evaluation of student achievement in districts using Houghton Mifflin. Raleigh-Durham, NC: Author.

Additional source:

EDSTAR, Inc. (2004). Large-scale evaluation of student achievement in districts using Houghton Mifflin Mathematics: Phase two. Raleigh-Durham, NC: Author.

Johnson, J., & Hall, M. (2003). Technical report: Houghton Mifflin California math performance evaluation. Raleigh, NC: EDSTAR, Inc.

Additional source:

Johnson, J., Yanyo, L., & Hall, M. (2002). Evaluation of student math performance in California school districts using Houghton Mifflin Mathematics. Raleigh, NC: EDSTAR, Inc.

Did not meet WWC evidence screens

Houghton Mifflin Company. (n. d.). Student performance in New York City District 9 on New York City/state assessments after one year of Houghton Mifflin Mathematics. Retrieved May 4, 2006 from www.eduplace.com/state/pdf/hmm/05/efficacy/g23552_hmm05_p57-59.pdf. ⁶

Mehrens, W. A., & Phillips, S. E. (1986). Detecting impacts of curricular differences in achievement test data. Journal of Educational Measurement, 23 (3), 185-196. ⁶