Intra Subject Variability
Definition of Intra Subject Variability:
In a crossover trial, variability in each subject is used to assess treatment differences.

The range of possible values for any measurable characteristic, physical or mental, of a human being, analyzed, examined, investigated, experimented upon, or treated in the course of particular study.
Intra Subject Variability is part of the Conceptual Entities group
Intra Subject Variability is also know as:
Intra Study Subject Variability
Within-Subject Differences