The stability is an information that indicates whether the cause of the success (or failure) is an enduring characteristic or one that changes or disappears over time.
Other information:
The stability is the degree to which a series of observations shows a consistent level or trend.
Other information:
The stability is in developmental psychology, the degree to which a person maintains the same rank order over time in comparison with peers for a particular characteristic.
Other definition:
The degree to which a series of observations shows a consistent level or trend.