Towards an Expanded Conception of Publication Bias

Towards a reduction in publication bias.

Current practice results in the publication of many research studies in medical and related disciplines which may be criticised on the grounds of inadequate sample size and statistical power. Small studies continue to be carried out with little more than a blind hope of showing the desired effect. Nevertheless, papers based on such work are submitted for publication, especially if the results t...

Systematic review of publication bias in studies on publication bias.

Publication policy or publication bias?

Although ‘‘a large number of studies have appeared in the literature that report associations of low penetrance genetic variants with disease,’’ as suggested in the recent CEBP editorial (1), hardly any of these reports have been translated into solid results by replication studies, at least for the common cancers. To some extent this is inevitable, as false-positive associations are an inheren...

Publication Bias

Is there publication bias towards brazilian articles on cancer?

OBJECTIVE To investigate whether Brazilian articles on cancer are published in journals with an impact factor and/or repercussion (measured by the number of citations) inferior to those that come from foreign organizations. METHODS A search was carried out in PubMed for the MeSH term "neoplasm" with the limits clinical trial, affiliation of the Brazilian author(s), and interval from July 1st,...