Full Idea
The notion of evidence generally plays a much more significant role in internalist epistemologies than it does in various forms of externalism.
Gist of Idea
Internalists are much more interested in evidence than externalists are
Source
Timothy McGrew (Evidence [2011], 'Prop..')
Book Reference
'Routledge Companion to Epistemology', ed/tr. Bernecker,S/Pritchard,D [Routledge 2014], p.60
A Reaction
I'm guessing that this is because evidence needs a certain amount of interpretation, whereas raw facts (which externalists seem to rely on) may never even enter a mind.