What method can a nurse researcher use to restrict search results in a database?

The use of Boolean operators is an effective method for a nurse researcher to restrict search results in a database. Boolean operators, which include terms such as "AND," "OR," and "NOT," help refine search queries to find more relevant literature. For instance, using "AND" combines keywords to ensure that all terms must be present in the results, while "OR" expands the search to include any of the terms, thus retrieving a broader set of related materials. "NOT" excludes certain terms to filter out unwanted information.

This precision is crucial in evidence-based practice, where the focus is on retrieving the most pertinent and high-quality research available. By employing Boolean operators, researchers can narrow their searches effectively, ensuring that they find studies that specifically align with their research questions or clinical inquiries. This method enhances the efficiency of the research process and supports the goal of making informed, evidence-based decisions in clinical practice.