Data Extraction Best Practices
- At least two reviewers should independently extract data to reduce bias and errors.
- Use an existing data extraction form, template, or tool as your foundation and customize according to your research question.
- Train reviewers and pilot the form/tool to ensure consistency and accuracy. Revise as needed.
- Document changes, decisions, reasoning, and discrepancies.
Data Extraction Templates
You can customize these templates for your own use. Other templates can be found via a Google search or in published systematic reviews.
- JBI Data Extraction FormThis link will take you to the homepage of the JBI Wiki. Click Manuals and select the the Evidence Synthesis manual. View the Data Extraction chapter and associated appendix for the type of review you are conducting.
Data Extraction Software
Some teams choose to use the same software or tool for screening, selection, and data extraction. Other teams choose to use one software or tool for screening and selection and another tool for data extraction.
USC Libraries Supported Software
Freely Available Software
Paid Software
Find More Tools:
Covidence Help for Data Extraction
- Covidence Data Extraction 1.0Best for RCTs only.
- Covidence Data Extraction 2.0More flexible for multiple study types.
Other Tools for Creating Data Extraction Forms
- REDCapRedCap is provided to all USC affiliates. Follow this link to learn how to sign up. RedCap is compliant with HIPAA regulations, but not 21 CFR Part 11, which describes how records must be kept about access of patient data.