v3 change log:
We improved the legends of the tables, to make clear that the table contains the percentage of papers reporting a significant result over the sum of the papers reporting a significant or non-significant result (S/(S+NS)).
v2 change log:
This is version 2 of an earlier preprint with some corrections in figure legends.
v3 change log: We improved the legends of the tables, to make clear that the table contains the percentage of papers reporting a significant result over the sum of the papers reporting a significant or non-significant result (S/(S+NS)).
v2 change log: This is version 2 of an earlier preprint with some corrections in figure legends.