Replication in Psychology?

First results from psychology’s largest reproducibility test by Monya Baker.

From the post:

An ambitious effort to replicate 100 research findings in psychology ended last week — and the data look worrying. Results posted online on 24 April, which have not yet been peer-reviewed, suggest that key findings from only 39 of the published studies could be reproduced.

But the situation is more nuanced than the top-line numbers suggest (See graphic, ‘Reliability test’). Of the 61 non-replicated studies, scientists classed 24 as producing findings at least “moderately similar” to those of the original experiments, even though they did not meet pre-established criteria, such as statistical significance, that would count as a successful replication.

The project, known as the “Reproducibility Project: Psychology”, is the largest of a wave of collaborative attempts to replicate previously published work, following reports of fraud and faulty statistical analysis as well as heated arguments about whether classic psychology studies were robust. One such effort, the ‘Many Labs’ project, successfully reproduced the findings of 10 of 13 well-known studies3.

Replication is a “hot” issue and likely to get hotter if peer review shifts to be “open.”

Do you really want to be listed as a peer reviewer for a study that cannot be replicated?

Perhaps open peer review will lead to more accountability of peer reviewers.


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