In
e. mavis hetherington's research, the were individuals who made up only about 10 percent of the divorced group, and were "well-adjusted, self-sufficient, and socially skilled.

The answer that fits the blank above is the term COMPETENT LONERS. This is one of the classification of the six pathways in exiting divorce developed by E. Mavis Hetherington. The competent loners comprises 10 percent of the divorced group who are having a successful career and are living an active social life, though they still choose to not share their personal lives with any other.