This protocol guided the review of research that informed the recommendations contained in the What Works Clearinghouse (WWC) updated English learner practice guide, Teaching Academic Content and Literacy to English Learners in Elementary and Middle School, published in April 2014. The research review 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.
Table of Contents
- Purpose Statement
- Key Definitions
- Procedures for Conducting the Literature Search
- Eligibility Criteria for Reviewing Relevant Studies
- Statistical and Technical Issues
- Version: 2.1
- Released: April 2014
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.