For this class, you will be primarily interested in empirical studies (original research). Use the Methodology limiter in PsycInfo to narrow to these types of studies.
![psycinfo_methodology_limit](//s3.amazonaws.com/libapps/accounts/7274/images/psycinfo_methodology.jpg)
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.
A Methodology limiter (as the names suggests), limits or narrows the results.
- "birth order" AND personality (without a methodology limiter = 1173 results)
- "birth order" AND personality (with a methodology limiter of Empirical Study = 557 results)