1. De-duplication of search results. Searching multiple databases inevitably results in duplicate records, which are removed before screening. 

2. Title/abstract screening. Records are independently screened for inclusion, typically by two independent reviewers, based on their title and abstract. Conflicts between reviewers are resolved by consensus or a third reviewer.

3. Full text screening. Records are independently screened for inclusion, typically by two independent reviewers, based on their full text. Conflicts between reviewers are resolved by consensus or a third reviewer. 

4. PRISMA flow diagram: A PRISMA flow diagram depicts the flow of records through the screening process. It maps out the the number of records identified, included and excluded, and reasons for exclusions. 

(Image from https://handbook-5-1.cochrane.org/chapter_11/figure_11_2_a_example_of_a_prisma_study_flow_diagram.htm)

WSU affiliates have free, unlimited access to Covidence software, which streamlines record de-duplication, title/abstract screening, and full-text screening. Request an invitation to join WSU's Covidence account, and see how to get started using Covidence!

(Image from https://www.techavy.com/google-play-store-apk-download/)