Why internal validity is not prior to external validity

Publication Year:
2012
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Repository URL:
http://philsci-archive.pitt.edu/id/eprint/9171
Author(s):
Persson, Johannes; Wallin, Annika
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conference paper description
We show that the common claim that internal validity should be understood as prior to external validity has, at least, three epistemologically problematic aspects: experimental artefacts, the implications of causal relations, and how the mechanism is measured. Each aspect demonstrates how important external validity is for the internal validity of the experimental result