La validez experimental en psicología: una revisión crítica de la literatura

Abstract

Despite its importance, the concept of experimental validity has received little development since its conception. The purpose of the present study is to provide a critical examination of it. Philosophical analysis of the concept was conducted along three lines: the distinction between alternative hypothesis and experimental artifacts, the use of lists of threats to validity, and the alleged tension between external and internal validity. It is concluded that the concept ́s development has been restricted due to a lack of emphasis on the role of both, causal assumptions and uncertainty in experimental contexts. The study ends with case examples from within psychology, as well as methodological recommendations to improve experimental validity.

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