# **PreK–12 
Research**

## [McGraw Hill Research Library](https://www.mheducation.com/prek-12/resources/research/library)

Explore efficacy studies, research foundations, whitepapers, and more.

## [Research Opportunities](https://www.mheducation.com/prek-12/resources/research/opportunities)

Discover opportunities to volunteer for program research studies.

## **Featured Independent Research**

### Strong Evidence for SRA Corrective Reading

In the National Assessment of Title I Programs, researchers found significant positive effects for Corrective Reading users on the Woodcock Word Attack assessment, qualifying as ESSA Strong evidence.

[Read the Research](https://ies.ed.gov/ncee/pdf/20084013.pdf)

### Open Court Reading Meets Top Tiers of ESSA Criteria

In a multisite cluster randomized study, researchers found significant positive effects on Reading Composite, Vocabulary, and Reading Comprehension. This study qualifies as ESSA Strong evidence.

[Read the Research](https://eric.ed.gov/?id=EJ951752)

### Significant Growth with Achieve3000 Literacy

In a study qualifying as ESSA Strong evidence, students using Achieve3000 Literacy had more significant gains on the GMRT-4 Vocabulary, Reading Comprehension, and Total Reading tests than non-users.

[Read the Research](https://www.mheducation.com/content/dam/mhe/prek12/documents/explore/achieve-3000/achieve3000-magnolia-final-report-tier-i.pdf)