Dr.
Stephen Lindsay\, University of VictoriaDr.
Stephen Lindsay\, University of VictoriaTitle: Replicat
ion in Psychological Science
Psychology journals have too oft
en published Type I errors as real effects and too often greatly overestima
ted the sizes of real effects. As Interim Editor of Psychological Science\
, I am attempting to forge ahead on a path blazed by my predecessor Eric Ei
ch: A multi-pronged effort to reduce the rate of such errors without sacri
ficing other scientific values (e.g.\, relevance\, interestingness\, import
ance). I highlight four issues that I believe particularly important: (a)
the troubling trio of low statistical power\, a surprising result\, and a
p value only slightly less than .05\; (b) p hacking\; (c) the noisiness of
correlations\; and (d) misinterpretation of non-significant effects. I enco
urage pre-registration\, fine-grained graphing\, power analysis\, confidenc
e intervals\, effect sizes\, replication\, sharing of materials and data\,
and meta-analysis. My talk will allow for lots of back-and-forth and discu
ssion about publishing in psychological science (including in Psychologi
cal Science).