Tag Archives: low statistical power

What are published effect sizes and study power in recent cognitive neuroscience and psychology?

Given the ongoing debate on the lack of reproducibility in many scientific fields, Szucs and Ioannidis (2017) analysed published records in cognitive neuroscience and experimental psychology journals to determine publication practices in these fields. The investigators used a text-mining approach to extract 26,841 records of degrees of freedom and t-values from 3,801 papers published between Jan 2011 to Aug 2015

Read more

The natural selection of bad science: a second perspective

Note. This is a semi-independent summary of the same paper that Marty wrote about in the post here. I wrote it to present a different perspective on an otherwise fascinating idea. There is an increasing awareness and deep concern that most scientific findings are not reliable or valid. Many key researchers and research groups have called for (1) greater transparency

Read more