In addition to using AND, OR, NOT in searching, databases also have Limiters, that can further focus your search. Limiters tell the database to retrieve results according to a certain set of criteria. Common, useful limiters are full text, peer review, and date range. Depending on the subject specificity of the database, limiters can also determine research interest, publication type, language, geography, and more. There are a few different ways to employ limiters:
1. Apply limiters to your search at the outset, and edit as needed.
2. Perform an initial search, view results, then apply limiters.
Using the first scenario as an example, type your search terms in, then move to larger box below to select your limiters. This particular search will retrieve results on capital punishment that are full text, from peer reviewed journals, and have been published since 2010.
Using the second scenario as an example, type in your search terms and click Search. Limiters are available in the left column; once you choose a limiter, your results are automatically updated.
The limiters of individual databases vary depending on if you are in basic search mode or advanced search mode. Normally you will see more specific limiters if you choose advanced search mode.