When limiting the search terms to avoid bias, which approach is most effective?

Using a variety of keywords is the most effective approach when limiting search terms to avoid bias. This method allows researchers to capture a broad spectrum of relevant information and perspectives, reducing the risk of inadvertently excluding studies or data that could provide valuable insights. By employing diverse keywords, researchers can ensure they are considering different aspects of the research question, leading to a more balanced and comprehensive understanding of the topic.

In contrast, narrowing down to specific studies might limit the breadth of information by focusing too narrowly on selected research, potentially missing out on important findings from other studies. Restricting the number of databases can similarly reduce the range of available literature, which could lead to a biased view based on incomplete data. Using general terms across all examples might cause a lack of specificity, resulting in irrelevant or overly broad search results that do not adequately address the research question. Therefore, including a variety of keywords is essential for maintaining rigor and minimizing bias in the research process.