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Use the Methodology limiter in PsycInfo to narrow to empirical studies (original research).
APA describes the methodology field values found in the PsycInfo and PsycArticles databases.
- In addition to the Empirical Study limiter, there are also limiters for Clinical Case Study and Treatment Outcome/Clinical Trial.
Web of Science
Choose Article Limit under Document Types
- Search for your topic.
- On the results list page, look at Document Types.
- Select the Article limit.
Use Advanced Search Functionality
Check Article - for results that are Original Research articles
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