What are some examples of publication bias in scientific research?

What are some examples of publication bias in scientific research?

Publication bias occurs when the outcomes of research influence whether it gets published. For example, studies with positive results are more likely to be published than those with negative or inconclusive results.

Can you give me a specific example?

Sure! One well-known example is the publication of clinical trials for new drugs. Trials that show a drug is effective are often published, while those that find no effect may remain unpublished.

How does this bias affect scientific knowledge?

It skews the overall understanding of a field, as researchers and practitioners may only see a partial view of the evidence, leading to potentially harmful decisions based on incomplete data.

What can be done to reduce publication bias?

Encouraging the registration of all clinical trials and promoting the publication of negative results can help reduce publication bias.