Reference Resources iconReview Protocols

These protocols guided the reviews of research that informed the recommendations contained in the What Works Clearinghouse (WWC) practice guides Assisting Students Struggling with Mathematics: Response to Intervention (RtI) for Elementary and Middle Schools, published in April 2009, and Assisting Students Struggling with Mathematics: Intervention in the Elementary Grades, expected to be published in early 2021.

The research reviews involved the following steps:

  • The research staff searched the professional literature to identify relevant studies. Additional studies were identified by the expert panel.
  • Studies were screened to determine whether they were within the scope of the practice guide.
  • Eligible studies were assessed against WWC evidence standards.

Protocol Details

  • Version: 4.0
  • Released: July 2020
  • Version: 2.0
  • Released: April 2009

What is a Protocol?

A review protocol defines the scope of a systematic review. Developed with substantive experts, the protocol defines the parameters for the review, including the research, populations, settings, and outcomes. The protocol also specifies details of the literature search and any topic-specific applications of the design standards.

Protocol versions reflect the version of WWC standards in effect when the protocol was released. Protocol versions that predate the current version of the WWC standards handbook can be used to identify acceptable outcome domains for review within a given topic. The current WWC standards are used to guide the review of studies with acceptable outcomes.

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