What might be a better way to study self-control and measure how it impacts later life outcomes?

the marshmallow test and how it did not accurately measure the long-term impact of self-control during early childhood. What might be a better way to study self-control and measure how it impacts later life outcomes? Include details about your proposed study methods, including information about the participants, task/measure of self-control, and study design (cross-sectional, longitudinal). … Read more