Observation, Experiment, and Scientific Practice

ABSTRACT Ian Hacking has argued that the notions of experiment and observation are distinct, not even the opposite ends of a continuum. More recently, other authors have emphasised their continuity, saying it is futile to distinguish between them as they belong on a continuum of epistemic activities. I take a middle road by suggesting that in scientific practice, experiment and observation constitute a continuum, but we can identify methodological and pragmatic aspects that define it, as well as various points on it that meaningfully delineate scientific practices. I explain the implications of the location of research projects on the continuum for scientists’ epistemic responsibilities and their ethical and funding concerns.