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What Works Clearinghouse



In order to submit an evaluator profile or register a randomized controlled trial (RCT), researchers must have secure log-in credentials.

Researchers registering with the Registry of Evaluation Researchers are required to submit:

  • Contact information
  • Examples of project experience by study design
  • Examples of project experience by publications
  • A signed letter of commitment to the WWC Evidence Standards

We encourage you to print a paper copy of the PDF File Registry of Evaluation Researchers form (302 KB) in order to review all the required information before completing the online registration.

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Researchers registering Randomized Controlled Trials are required to submit study details, including:

  • Principal investigator
  • Start and anticipated end dates
  • Sample and design details
  • Primary outcomes
  • A signed letter of commitment

RCTs may be registered once the study receives funding and is in progress. We encourage you to print a paper copy of the PDF File RCT Registry form (212 KB) in order to review all the required information before completing the online registration. 

Paperwork Reduction Act Statement

According to the Paperwork Reduction Act of 1995, no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. Public reporting burden for the collection and registering of Randomized Controlled Trial information is estimated to average 30 minutes per response including time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Public reporting burden for the collection and registering of Evaluation Researchers information is estimated to average 120 minutes per response including time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. The obligation to respond to this collection is voluntary. Send comments regarding the burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to the U.S. Department of Education, 400 Maryland Ave., SW, Washington, DC 20210-4537 or email ICDocketMgr@ed.gov and reference the OMB Control Number 1850-0788. Note: Please do not return the completed registry form to this address.

The information in the Registry of Evaluation Researchers and the Registry of Randomized Controlled Trials is supplied solely by the researchers themselves. Neither the What Works Clearinghouse (WWC) nor the U.S. Department of Education endorses any individuals or organizations listed in the registries. The WWC does not verify the accuracy of the information submitted by the researchers, nor does it assess their qualifications. The WWC does not provide confidentiality of any information provided to the registries.