According to schaie, what is the stage that many (but not all) people enter further into middle adulthood?

I believe the answer is: Executive stage

During the executive stage, people generally become more discipline in separating the things that they should or should not do in order to achieve their life goals. /

This stage is developed because most people in this age group tend to adopt broader perspective regarding how every little actions that they do could influence the outcome of their life.