Methodology & Meta-science

Fixing the stimulus-as-fixed-effect fallacy in task fMRI

We will be discussing the new preprint by Westfall, Nichols, and Yarkoni just announced on Twitter: "Fixing the stimulus-as-fixed-effect fallacy in task fMRI". This is an important paper showing how ignoring stimulus variation severely limits the generalizability of fMRI studies (test statistics inflated 50-200%!). Come along and learn how to improve your analyses of fMRI data! Link to the preprint