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Why internal validity is not prior to external validity
internal validity external validity Causation Campbell Cronbach
2016/5/31
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 implicat...
Ordinary Language and External Validity: Specifying Concepts in the Study of Ethnicity
Ordinary Language External Validity the Study of Ethnicity
2015/6/8
Do greater cultural differences between ethnic groups increase the probability of ethnic violence between them? Almost invariably, the questions of interest to social scientists are posed in terms of ...