Experimental results in social psychology are plagued by failure to replicate and also by being based on WEIRD samples. In line with the latter concern, Wesley Buckwalter, Stephen Stich, Edouard Machery and Dave Colaco have a recent paper in Episteme, titled ‘Epistemic Intuitions in Fake-Barn Thought Experiments’.
They found that, while participants respond generally in line with the intuition that fake-barn cases are cases of knowledge, older individuals seem to be the exception; the older the participant is, the less likely they think that the subject in the fake-barn style case knows. Here is a visualization of the findings (the Y-axis represents a 0-6 Likert scale anchored at 0 with ‘Doesn’t Know’, and 6 with ‘Knows’ the X- axis represents age in years):
Next: attempts to replicate?