Epistemic possibilities are relative to bodies of information, or perspectives. To claim that something is epistemically possible is typically to claim that it is possible relative one’s own current perspective. We generally do this by using bare, unqualified epistemic possibility (EP) sentences, ones that don’t mention our perspective. The fact that epistemic possibilities are relative to pers...

The thesis of this paper is that contemporary behavior analysis-and the behavior analysis of child development in particular-is contextualistic in world view, in contrast to its traditional characterization as being mechanistic. The contextualistic character of behavior analysis is introduced by presenting some material on the field’s historical background. This material, though, is not present...

Relativism, in the sense at issue here, is a view about the meaning of knowledge attributions—statements of the form “S knows that p.” Like contextualism, it holds that the truth of knowledge claims is sensitive to contextual factors, such as which alternatives are relevant at the context, or how high the stakes are. For the relativist, however, the relevant context is the context from which th...

1 Biography 2 Life-Span Developmental Psychology 2.1 Overview 2.2 Lifelong Development 2.3 Multidimensionality and Multidirectionality 2.4 Development as Gain/Loss 2.5 Plasticity 2.5.1 Applications of Plasticity 2.6 Historical Embeddedness 2.7 Contextualism as a Paradigm 2.8 Field of Development as Multidisciplinary 2.9 Applications of Life-Span Developmental Psychology 2.9.1 Positive Youth Dev...