The Learning Company Brochure Citations

HMH is committed to helping improve educational outcomes for students, teachers, and school leaders by conducting rigorous research studies that meet the highest standards and that are validated by internal and independent research.


"120+ published research studies demonstrate why HMH is the leading choice for instructional programs, services, and support."

See for more details on our mixed-methods research approach.

"Students enrolled in HMH interventions grew twice as much as students in other programs."

See for more details on our mixed-methods research approach.


"9 out of 10 eighth-grade students met or exceeded the reading standard proficiency rate after support from our coaches in Humble, TX."

Texas Education Agency 2016–17 School Report Card

"71% of students earned advanced or proficient scores in mathematics as a result of our student-centered coaching in North Kansas City, MO."

HMH Research & Learning Sciences. (2019). Impact Study: North Kansas City, MO. Boston: Houghton Mifflin Harcourt. (in press)


"67% of READ 180® seventh-grade students in Cypress-Fairbanks ISD, TX met or exceeded average growth during one school year while 36% doubled their annual expected growth."

HMH Research & Learning Sciences. (2019). READ 180 Universal Cypress-Fairbanks Independent School District Research Results. Boston: Houghton Mifflin Harcourt. (in press)

"Primary students who used GO Math!® for two years demonstrated standardized test achievement that equated to five additional months of learning."

Eddy, R. M., Hankel, N., Hunt, A., Goldman, A., & Murphy, K. (2014). Houghton Mifflin Harcourt GO Math! Efficacy Study Year Two Final Report. Cobblestone Applied Research & Foundations. La Verne, CA.


"The rate of learning is two times greater for students who receive immediate feedback compared to those who don’t."

Fuchs, L. S., & Fuchs, D. (1986). Effects of Systematic Formative Evaluation: A Meta-Analysis. Exceptional Children, 53(3), 199–208.

"1M+ students benefit from our low-stress, adaptive assessments."

Based on enrolled licenses for HMH Math Inventory® and Reading Inventory®.