The John's Hopkins Study Designs & Evidence-Based Practice Levels model clearly defines the different types of studies based on quality of evidence as well as information on study types. These are significant aspects of understanding EBP.
The link to the site has been adapted by the Upstate Medical University Health Sciences Library
Johns Hopkins EBP: Searching the Evidence
John's Hopkins Question Development Tool
John's Hopkins Stakeholder Analysis Tool
John's Hopkins Evidence Level and Quality
John's Hopkins Research Evidence Appraisal Tool
John's Hopkins Individual Evidence Summary Tool
John's Hopkins Synthesis Process and Recommendations Tool