As conceptual splits, what is the difference between continuity-discontinuity and stability-instability?

Question

Quizplus · Accepted Answer

The Answer is Behaviors that are represented in the same way at different points in the life span reflect continuity, whereas behaviors that cannot be represented in the same way reflect discontinuity. Instability refers to changes in a person's position relative to his or her reference group with development, whereas a lack of change refers to stability. The former involves making intraindividual comparisons over time and the latter involves making both intraindividual and interindividual comparisons over time.

As Conceptual Splits, What Is the Difference Between Continuity-Discontinuity and Stability-Instability