Why might researchers encounter publication bias in their findings?

Researchers may encounter publication bias primarily because they often prefer to avoid publishing negative outcomes. This bias occurs when studies with positive or significant results are more likely to be published than those with negative or null results. As a consequence, the body of published literature becomes skewed, making it difficult for other researchers to ascertain the true efficacy or effectiveness of interventions. This can lead to an overestimation of the benefits of certain treatments or interventions and ultimately impacts evidence-based decision-making.

Focusing on only reporting positive findings contributes to the lack of visibility for studies that do not find significant effects, which can perpetuate misinformation within the research community and among practitioners who rely on published studies for guidance in their work. It is crucial for the integrity of scientific inquiry that findings, regardless of their nature, are disseminated to provide a complete and accurate picture of the research landscape.