This document discusses how to use limiters in ProQuest Research Library to refine search results. It explains how to use Boolean operators, peer review filters, publication date ranges, language filters, document and source types, and subject filters to narrow an initial search on the topic of video games, violence and adolescents from over 1,000 results to 22 relevant journal articles. The goal is to illustrate different limiter options in ProQuest to efficiently focus a search on the most pertinent information.