As you develop characters, imagine how they might have done on the marshmallow test. What might that mean about them as adults? Are they patient planners or feet-first reactors? How do they interact now with others and with the world around them?
The Marshmallow Test for Grownups – Ed Batista – Harvard Business Review
http://blogs.hbr.org/2014/09/the-marshmallow-test-for-grownups/
sharon p. lynn 