Explore high-quality assessments designed for a variety of needs. All of our solutions are carefully designed to support lifelong learning.


Cognitive Abilities Test™ (CogAT)

CogAT® Form 7 reflects the most up-to-date research on how best to measure cognitive abilities and learning styles. Enhancements include new item types and a reduced language load to meet the needs of ELL children.

Lead author Dr. David F. Lohman, an internationally recognized abilities assessment researcher and winner of the National Association of Gifted Children’s Paper of the Decade award, has built on the strengths of the assessment by introducing a variety of enhancements, including new item types, a reduced language load, an expanded instructor support package, multiple administration modes, and more.


Designed as an enhanced district assessment system by researchers at the University of Oregon, easyCBM® offers a complete solution at every tier of the RtI(Response to Intervention) process.

easyCBM Reading Comprehension Assessment also provides a Lexile® score that is intended for teachers and parents to select instructional resources appropriate to student reading levels.

Iowa Assessments

This psychometrically rigorous assessment measures the continuum of student achievement through Grades K–12 in core academic areas important for success in college and career.

The Iowa Assessments™ are the result of a long-standing partnership between Houghton Mifflin Harcourt® and Iowa Testing Programs (University of Iowa).

Gates-MacGinitie Reading Tests® (GMRT)

GMRT® enables teachers and schools to measure the reading levels of students throughout their school careers.

  • Powerful diagnostic tools used nationally to help teachers know their student’s level of reading achievement
  • Flexible enough to use for a variety of testing needs throughout the student’s school career: screening, diagnosis, outcomes, or progress monitoring
  • Developmentally appropriate for all learners — from beginning readers to adults
  • Alternate forms for pre- and post-testing, which can be used to measure growth over time or monitor program effectiveness
  • Identifies students that need additional individual diagnosis and special instruction

Woodcock-Johnson IV (WJ IV)

WJ IV™ is a comprehensive, contemporary assessment system that allows examiners to accurately evaluate learning problems through comparisons within and across all batteries.

Houghton Mifflin Harcourt now provides web-based scoring and reporting for all Woodcock-Johnson®, Fourth Edition assessments, as well as the WMLS™-R NU (Woodcock-Muñoz Language Survey®- Third Edition) and its Instructional Interventions Program.

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easyCBM® is a registered trademark of the University of Oregon licensed for use by Houghton Mifflin Harcourt. Lexile® is a trademark of MetaMetrics, Inc., and is registered in the United States and abroad. HMH®, GMRT®, Gates-MacGinitie Reading Tests® and the GMRT logo, Cognitive Abilities Test™, CogAT®, Iowa Assessments™, Woodcock-Muñoz Language Survey®, WMLS™, WJ IV™, and Woodcock-Johnson® are trademarks or registered trademarks of Houghton Mifflin Harcourt.