Julkistusbias
Julkistusbias, or publication bias, is a systematic distortion in the scientific record that occurs when studies with statistically significant or favorable results are more likely to be published than studies with inconclusive or null results. The bias can affect any field and can occur at multiple stages of the research lifecycle, from study design and data analysis to submission, editorial decision, and final publication. In practice, this means the published literature may overrepresent positive findings and underrepresent negative or inconclusive ones.
Mechanisms of julkistusbias include selective submission by researchers who expect easier publication for significant results; editorial
Consequences include distorted effect size estimates in meta-analyses, overestimation of interventions’ effectiveness, inflated claims, and replication
Detection and assessment employ statistical tools such as funnel plots, Egger’s test, trim-and-fill methods, and analyses
Efforts to reduce publication bias include journal policies that promote the acceptance of well-conducted studies regardless