---
title: What 150 Peer Review Studies Have to Say about CLASS
description: Learn more about our new research paper and how CLASS is making a difference in teacher's and children's lives.
image: https://info.teachstone.com/hubfs/teacher-high-fiving-student.jpg
---

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    - [What is CLASS](https://teachstone.com/class/)
    - [CLASS 2nd Edition](https://teachstone.com/class-2nd-edition/)
    - [For Leaders](https://teachstone.com/leaders/)
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          - [CLASS Train-the-Trainer Affiliate Program](https://teachstone.com/class-train-the-trainer/)
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          - [CLASS Group Coaching Transition Training](https://teachstone.com/class-group-coaching-transition-training/)
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          - [Banking Time: Investing in Relationships](https://teachstone.com/banking-time/)
          - [CDA with CLASS](https://teachstone.com/cda-programs/)
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          - [CLASS Dictionary](https://store.teachstone.com/class-dictionary/)
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          - [CLASS Observation Score Sheets](https://store.teachstone.com/score-sheets/)
          - [CLASS Strategy Cards](https://store.teachstone.com/class-strategy-cards/)
          - [CLASS Support Kits](https://teachstone.com/class-support-kits/)
- Resources
  
    - [Resource Library](https://teachstone.com/resources/)
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- The CLASS Framework
  
    - [What is CLASS](https://teachstone.com/class/)
    - [CLASS 2nd Edition](https://teachstone.com/class-2nd-edition/)
    - [For Leaders](https://teachstone.com/leaders/)
    - [For Observers](https://teachstone.com/for-observers/)
    - [For Coaches](https://teachstone.com/for-coaches/)
    - [For Educators](https://teachstone.com/for-educators/)
    - [For CLASS Affiliates](https://teachstone.com/for-class-affiliates/)
    - [For Head Start](https://teachstone.com/headstart/)
    - [Research](https://teachstone.com/research/)
- Products and Trainings
  
    - [Getting Started with CLASS](https://teachstone.com/getting-started-with-class/)
      
          - [CLASS® 2nd Edition Infant-Toddler](https://teachstone.com/class-2nd-edition-infant-toddler/)
          - [CLASS® 2nd Edition Pre-K-3rd](https://teachstone.com/class-2nd-edition-pre-k-3rd/)
          - [CLASS Overview for Leaders](https://teachstone.com/a-class-overview-for-leaders/)
          - [CLASS 2nd Edition Intro to Interactions for Educators](https://teachstone.com/intro-to-interactions-for-educators/)
    - [CLASS Environment](https://teachstone.com/class-environment/)
      
          - [CLASS Environment Observer Training](https://teachstone.com/class-environment/#environment-observer-training)
          - [CLASS Environment Overview for Educators](https://teachstone.com/class-environment/#environment-educator-training)
    - Observer Training & Certification
      
          - [CLASS Train-the-Trainer Affiliate Program](https://teachstone.com/class-train-the-trainer/)
          - [CLASS Affiliate Trainer Recertification](https://store.teachstone.com/trainer-recertification-new/)
          - [CLASS 2nd Edition Measurement Trainer Program](https://teachstone.com/class-2nd-measurement-trainer/)
          - [CLASS Observer Recertification](https://store.teachstone.com/observer-recertification-new/?showHidden=true)
          - [CLASS Observation Certification Training](https://teachstone.com/class-observation-training/)
    - [Transition Supports](https://teachstone.com/class-observer-supports/)
      
          - [CLASS Group Coaching Transition Training](https://teachstone.com/class-group-coaching-transition-training/)
          - [CLASS 2nd Edition Observer Transition Training](https://teachstone.com/class-2nd-observer-transition-training/)
          - [CLASS 2nd Edition Trainer Transition Training](https://teachstone.com/class-2nd-edition-trainer-transition-training/)
          - [CLASS Trainer Add-Ons](https://teachstone.com/trainer-add-ons/)
    - [Program Services & Support](https://teachstone.com/program-services-support/)
      
          - [CLASS Coding Support](https://teachstone.com/coding-support/)
          - [CLASS Quality Improvement Subscription **New!**](https://teachstone.com/myteachstone/)
          - [CLASS Observation Services](https://teachstone.com/class-observation-services/)
          - [Custom Events by Teachstone](https://teachstone.com/custom-events/)
          - [Meaningful Interactions at Home](https://teachstone.com/meaningful-interactions-at-home/)
    - Coach Trainings & Certification
      
          - [CLASS Group Coaching](https://teachstone.com/class-group-coaching/)
          - [1-1 Video Coaching](https://teachstone.com/1-1-video-coaching/)
          - [Instructional Support for Coaches](https://teachstone.com/coach-feedback/)
          - [Interaction Essentials Trainer Program](https://teachstone.com/interaction-essentials-trainer-program/)
    - [Professional Development for Educators](https://teachstone.com/professional-development-for-educators/)
      
          - [Banking Time: Investing in Relationships](https://teachstone.com/banking-time/)
          - [CDA with CLASS](https://teachstone.com/cda-programs/)
          - [Instructional Support Essentials for Teachers](https://teachstone.com/instructional-support-essentials-for-teachers/)
          - [Interaction Essentials for Educators](https://teachstone.com/interaction-essentials-for-educators/)
    - [CLASS Supplies](https://teachstone.com/class-supplies/)
      
          - [CLASS Dictionary](https://store.teachstone.com/class-dictionary/)
          - [CLASS Interactions Dimension Guide](https://store.teachstone.com/class-dimensions-guide/)
          - [CLASS Manuals](https://store.teachstone.com/class-2nd-edition-pre-k-3-manual-options/)
          - [CLASS Observation Score Sheets](https://store.teachstone.com/score-sheets/)
          - [CLASS Strategy Cards](https://store.teachstone.com/class-strategy-cards/)
          - [CLASS Support Kits](https://teachstone.com/class-support-kits/)
- Resources
  
    - [Resource Library](https://teachstone.com/resources/)
    - [Blog](https://info.teachstone.com/blog)
      
          - [Blog (Spanish)](https://info.teachstone.com/blog-en-esp?hsLang=en-us)
          - [Blog (French)](https://casiope.org/categorie/class/)
    - [Upcoming Events](https://teachstone.com/upcoming-events/)
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# What 150 Peer Review Studies Have to Say about CLASS

 April 10 2017 by [Sarah Hadden](https://info.teachstone.com/blog/author/sarah-hadden)

- [Research](https://info.teachstone.com/blog/topic/research)

![](https://info.teachstone.com/hs-fs/hubfs/teacher-high-fiving-student.jpg?width=519&height=300&name=teacher-high-fiving-student.jpg)

If you’ve ever attended a CLASS Observation Training, you’ve heard the trainer state that the CLASS is a valid tool for measuring the efficacy to teacher-child interactions: that classroom quality, as measured by the CLASS, predicts positive developmental and academic outcomes for children (predictive validity). Specifically, children who attend classrooms with higher CLASS scores demonstrate better social and academic outcomes than their peers in classrooms that were not rated as highly.

You may have wondered, “What is the research behind the CLASS? How can they state so confidently that the CLASS works?” If so, you are in luck! Teachstone is excited to release our paper titled, “Effective Teacher-Child Interactions: A Summary of the Research on the Classroom Assessment Scoring System (CLASS) Pre-K through Third Grade.” This paper reviews over 150 peer reviewed research studies that examined the use of CLASS in pre-K and third-grade classrooms in the U.S. In addition to confirming that the CLASS has predictive validity, they also show that targeted CLASS-based professional development helps teachers improve their interactions with children, leading to improved child outcomes. It’s pretty neat stuff!

To read this paper and learn more, [click here](https://info.teachstone.com/research-paper-outcomes?hsLang=en-us). Happy reading. You can also [watch our webinar](https://info.teachstone.com/webinar/research-for-real-people?hsLang=en-us) "Research for Real People" that discusses the paper. If you have any questions, feel free to email me at [sarah.hadden@teachstone.com](mailto:sarah.hadden@teachstone.com).

If you are wondering about the other age levels of the CLASS, rest assured that we were working on collecting and analyzing studies on these age levels as well.

[![New Call-to-action](https://no-cache.hubspot.com/cta/default/336169/1c48c78f-dd20-444c-8b43-ca7d68b0b093.png)](https://cta-redirect.hubspot.com/cta/redirect/336169/1c48c78f-dd20-444c-8b43-ca7d68b0b093)

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