Final answer:
Data ownership is a principle of data stewardship as defined by the National Committee on Vital and Health Statistics.
Step-by-step explanation:
The principle of data stewardship as defined by the National Committee on Vital and Health Statistics is data ownership. Data ownership refers to the responsibility and accountability for the data and its use.
It involves determining who has the rights and control over the data and ensuring that it is used in accordance with legal and ethical guidelines.