Archived Resources

Guide
Reviewer Guidance for Use with the Procedures and Standards Handbooks V3.1
December 1, 2016

The archived guidance document is provided here to inform WWC readers on the additional guidance provided to reviewers applying the previous version 3.1 procedures and standards.
Guide
Reviewer Guidance for Use with the Procedures and Standards Handbooks V3.0
March 1, 2016

The archived guidance document is provided here to inform WWC readers on the additional guidance provided to reviewers applying the previous version 3.0 procedures and standards.
Reference
Assessing Attrition Bias v3.0
September 1, 2014

Attrition occurs when members of the initial research sample are not part of the final analysis sample, such as due to missing data or leaving the study. Both the overall sample attrition and the diff...
Reference
Assessing Attrition Bias v2.1
July 1, 2013

Attrition occurs when members of the initial research sample are not part of the final analysis sample, such as due to missing data or leaving the study. Both the overall sample attrition and the diff...
Reference
What Works in Math Summary
A summary of the WWC recommendations on teaching math to young children provides suggestions for building on their interest in math.

Connect With the WWC

loading
back to top