General developmental mechanism explains growth across most personal competence domains?

I believe that this is a very intriguing and potentially important research study for all involved in research or the assessment of human development, and those working in school and learning situations in general. The study suggests a very general domain-general set of mechanisms may account for growth and change across different broad domains of personal competence. I have made it an "IQ's Reading" post (click here for explanation). The annotated article can be found here. I found it a very thought provoking article that connects some research and theoretical dots across diverse academic disciplines that study human cognitive and physical/motor development. See comments in post for more thoughts.

Double click on images to enlarge.






- iPost using BlogPress from Kevin McGrew's iPad