There has long been an impression that reliabilism implies externalism and that frequentist statistics is externalist because it is reliabilist. I argue, however, that frequentist statistics can be plausibly understood as a form of internalist reliabilism -- internalist in the conventional sense but reliabilist in certain unconventional yet intriguing ways. More importantly, I develop the thesis that reliabilism does not imply externalism, not by stretching the meaning of 'reliabilism' merely to break the implication, but in order to better understand frequentist (...) statistics, which represents one of the most sustained attempts by scientists to develop an epistemology for their own use. (shrink)