We often legitimately ascribe reality both to social and to natural kinds.
But the bases for these ascriptions are not entirely the same. In both case
s, reality is typically determined by what characterizations of causal fact
ors are indispensable to adequate explanation. Nonetheless, a psychological
role as part of an identity that instances embrace is sometimes, distincti
vely, a condition for ascribing reality to a social kind. Although such ass
essments of reality can be construed as employing a standard of causal acti
vity shared with natural science, they reveal a distinctive moral dimension
in the bases for ascribing reality to social kinds.