To limit to authoritative websites, choose your preferred domain (.edu, .gov or .org) by adding site:.domain
Example
site:.org to your search.
Be sure not to include any spaces between site: and the domain.
For natural phrases such as school choice, be sure to use quotations.
Example: "school choice"
Use both site command and quotation for better search results.
"school choice" site:.edu
Use one of the following methods to evaluate websites prior to using in academic research.