chalkboard background with Resources title


Featured items

Webinar

Supporting Quality Control of Study Reviews in the What Works Clearinghouse (WWC)

April 9, 2024

The WWC has released a webinar to help reviewers understand WWC quality control activities and common review issues. It also introduces a resource that can help reviewers complete documentation of study reviews with more confidence and higher quality.
Webinar

What Works Clearinghouse (WWC) Group Design Refresher Training

April 9, 2024

The WWC has released a webinar intended for those certified in WWC group design standards version 5.0. This webinar provides reviewers with tips and strategies for conducting reviews under version 5.0 standards and how to address challenging issues in reviews.
User Guide for the Version 5.0 Online Study Review Guide thumbnail
Guide

User Guide for the Version 5.0 Online Study Review Guide

February 26, 2024

This guide provides WWC reviewers with an overview of completing study reviews in the Version 5.0 Online Study Review Guide and tips for high-quality study reviews.

Resources for WWC Reviewers

Webinar

Supporting Quality Control of Study Reviews in the What Works Clearinghouse (WWC)

April 9, 2024

The WWC has released a webinar to help reviewers understand WWC quality control activities and common review issues. It also introduces a resource that can help reviewers complete documentation of study reviews with more confidence and higher quality.
Webinar

What Works Clearinghouse (WWC) Group Design Refresher Training

April 9, 2024

The WWC has released a webinar intended for those certified in WWC group design standards version 5.0. This webinar provides reviewers with tips and strategies for conducting reviews under version 5.0 standards and how to address challenging issues in reviews.
User Guide for the Version 5.0 Online Study Review Guide thumbnail
Guide

User Guide for the Version 5.0 Online Study Review Guide

February 26, 2024

This guide provides WWC reviewers with an overview of completing study reviews in the Version 5.0 Online Study Review Guide and tips for high-quality study reviews.
Using Bayesian Meta-Analysis to Explore the Components of Early Literacy Interventions thumbnail
Guide

Using Bayesian Meta-Analysis to Explore the Components of Early Literacy Interventions

September 12, 2023

This What Works Clearinghouse methodological report explores to what extent components of early literacy interventions can explain which interventions have positive effects on alphabetics skills.
Acceptable Methods for Addressing Missing Data thumbnail
Reference

Acceptable Methods for Addressing Missing Data

April 27, 2023

This reference describes the acceptable approaches for addressing missing data in group designs under the What Works Clearinghouse (WWC) Handbook, Version 5.0.
Webinar

Single-Case Design Research in What Works Clearinghouse (WWC) Intervention Reports

April 1, 2023

The What Works Clearinghouse (WWC) has released a webinar to help researchers understand how the WWC reviews and synthesizes single-case design research in the context of two WWC intervention reports on Good Behavior Game and Class-Wide Function-Related Intervention Teams (CW-FIT).
Webinar

Introducing the WWC Procedures and Standards Handbook, Version 5.0

August 25, 2022

The WWC hosted a webinar, on August 25, 2022, to introduce the major updates included in the WWC Procedures and Standards Handbook, Version 5.0. Due to a recording error, this webinar was re-re...
Video

Accurately Capturing Study Context: Improvements to the OSRG for 2022

August 1, 2022

This video provides WWC reviewers with an overview of updates to the Online Study Review Guide’s context fields.
Webinar

Introducing for public comment: WWC Procedures and Standards Handbook, Version 5.0

March 22, 2022

The WWC hosted a webinar on March 22, 2022 to introduce the major updates proposed for the WWC Procedures and Standards Handbook, Version 5.0 during the Handbook public comment period.
WWC Online Regression Discontinuity Design Standards Training thumbnail
Tutorial

WWC Online Regression Discontinuity Design Standards Training

December 27, 2021

This training is designed to inform the public about key elements of the WWC regression discontinuity design standards and the procedures the WWC uses to review regression discontinuity desig...
Webinar

What Works Clearinghouse Systematic Literature Searches

September 29, 2021

View the recording of the What Works Clearinghouse (WWC) and Education Resources Information Center (ERIC) webinar on the best-practice principles and procedures used in WWC systemat...
Webinar

Reviewing Studies for the What Works Clearinghouse

August 23, 2021

This What Works Clearinghouse (WWC) webinar discussed processes for screening, reviewing, and reconciling WWC studies using the Online Study Review Guide (OSRG). During the webinar, the prese...
Webinar

Updates to the Version 4.1 Online Study Review Guide

July 29, 2021

This What Works Clearinghouse (WWC) webinar provided an overview of recent Online Study Review Guide (OSRG) updates that align with version 4.1 of the WWC Standards Handbook and WWC Procedure...
Webinar

Version 4.1 Effect Size and Standard Error Formulas

December 2, 2020

The WWC hosted a webinar on December 2, 2020 to summarize changes to the effect size and standard error formulas published in the V4.1 supplement to the WWC Procedures Handbook.
Data Extraction and Effect Size Estimation for Single-Case Design Studies thumbnail
Infographic

Data Extraction and Effect Size Estimation for Single-Case Design Studies

November 1, 2020

This infographic highlights the WWC’s process for extracting data and estimating effect size for reviews and reconciliations of single-case design studies
Group Design Standards Training: Tips for Becoming a Certified Reviewer thumbnail
Infographic

Group Design Standards Training: Tips for Becoming a Certified Reviewer

October 1, 2020

This infographic provides tips for becoming a certified reviewer as well as additional information about the certification process.
Reviewing the Available Research on Distance Learning thumbnail
Infographic

Reviewing the Available Research on Distance Learning

June 22, 2020

This infographic highlights what the WWC has discovered through rapid screening and reviews about the research behind distance learning programs and practices.
Webinar

WWC Review Protocols: What's the Point?

May 14, 2020

This webinar provides an introduction to review protocols particularly for WWC-certified reviewers, protocol authors, review team leadership, and researchers whose studies may be reviewed by the WWC.
Webinar

WWC Standards for Reviewing Fuzzy Regression Discontinuity Designs

October 29, 2019

The WWC hosted a webinar on October 29, 2019 to provide WWC reviewers and other participants with guidance on WWC standards for reviewing evidence from fuzzy regression discontinuity designs (FRDDs).
Webinar

Documenting Study Context in WWC Reviews of Group Design Studies

May 14, 2019

On May 14, 2019, the What Works Clearinghouse (WWC) hosted a free webinar on documenting contextual information in reviews of group design studies. The slide deck and archived Q&A responses are also a...
Webinar

Confounding in Group Design Studies

April 18, 2019

The WWC hosted a webinar on April 18, 2019 on the WWC definition of confounds, why they are problematic, practice identifying them, and an examination of the prevalence of confounding in WWC-reviewed ...
Key Criteria Used in WWC Reviews of Single-Case Design Research thumbnail
Reference

Key Criteria Used in WWC Reviews of Single-Case Design Research

January 1, 2017

The What Works Clearinghouse (WWC) Procedures and Standards Handbook (version 3.0) provides reviewers with a detailed description of the pilot single-case design standards and procedures. The WWC work...
Webinar

Applying the What Works Clearinghouse Standards to Postsecondary Research

March 10, 2016

This What Works Clearinghouse (WWC) webinar covers how the current WWC Procedures and Standards Handbook can be applied to postsecondary research. The presenters Will Doyle from Vanderbilt University,...
Attrition thumbnail
Reference

Attrition

Attrition (loss of sample) occurs when individuals initially included in a study are not included in the final study analysis. Attrition is a common issue in education research and can occur for many ...
Baseline Equivalence thumbnail
Reference

Baseline Equivalence

As part of the WWC review process for certain types of studies, reviewers assess whether the intervention group (those that received the intervention of interest) and the comparison group (those that ...
Confounding Factors thumbnail
Reference

Confounding Factors

A confounding factor is an aspect of a study that makes it impossible to tell whether the intervention or that factor is responsible for differences in outcomes. In WWC study reviews, certified review...
WWC Single-Case Design Standards Online Training thumbnail
Tutorial

WWC Single-Case Design Standards Online Training

The What Works Clearinghouse (WWC) offers this training to inform the public about the key elements of the WWC single-case design standards and the procedures the WWC uses to review single-case design...

Connect With the WWC
loading