 More comprehensively, Mary Ann Warren has proposed a multi-criterial account of moral status, in which it is neither a range nor a threshold concept. For Warren, the moral status of a being varies with the degree that it possesses the status-conferring attribute (Warren  1997).[3]  But Warren maintains that “full moral status” is both a threshold and a range concept; beings with moral agency enjoy the same, highest moral status regardless of the degree to which they possess the attributes needed for moral agency. As noted earlier, we will use the term “full moral status” to refer to the moral status that is generally accorded to cognitively nondisabled human adults, without assuming that there can be no higher status. “Full moral status” is thus roughly synonymous with “personhood” as that term is used in debates about whether fetuses, or higher primates, are persons.