Limiting the number of databases searched can result in what type of bias?

Limiting the number of databases searched can lead to negative bias because it restricts the scope of information and perspectives that can be included in the research. When researchers do not explore a diverse range of sources, they may inadvertently favor certain findings or viewpoints that are more prevalent in the limited datasets they choose to examine. This narrow approach can result in an incomplete or skewed understanding of the subject matter, as there might be valuable studies, contradictory findings, or alternative theories that are overlooked. Consequently, the conclusions drawn may reflect only a partial view of the evidence, leading to outcomes that are not fully representative of the existing body of knowledge. This highlights the importance of comprehensive literature searches in research to ensure a balanced and thorough exploration of the topic at hand.