Interesting study on replication studies and the importance of expertise

From experience to meaning...

Replication is a hot topic in research – although maybe not enough in educational research – and there are clear proponents but there are also scientists who talk about the ‘replication police’. A new study by Bench et al. sheds an interesting light on the results of replication studies and sees a link between successful replications and the expertise of the researchers doing the replication:

  • High expertise teams obtained effect sizes larger than low expertise teams.
  • High expertise teams also selected original studies with larger effect sizes.
  • The overall pattern of results suggested expertise mostly impacts study selection.
  • Experts may consider different methodological criteria at study selection.

Also interesting to note:

High expertise teams also selected studies with smaller sample sizes, but did not differ from low expertise teams on selection of studies based onp-value or the counterintuitiveness of the finding, suggesting that this selection difference was not…

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