Are left-handers quicker thinkers than righties?

All those parents in the '70s and '80s who made their left-handed children struggle to use their right hands may be kicking themselves right about now.
Scientific studies are showing that lefties are quicker and more adroit in some activities than their right-handed counterparts. How true is this idea?

Does being left handed make you feel special? - Quora

How does one become a left-hander (or right-hander for that matter

The Human Brain, HowStuffWorks

W HAT ARE THE ADVANTAGES AND DISADVANTAGES OF BEING LEFT - HANDED

Why does the right hand have more power to do work than the left, although they have same anatomy, nerves etc.? - Quora

Left is right (for some)

W HAT ARE THE ADVANTAGES AND DISADVANTAGES OF BEING LEFT - HANDED

The Human Brain, HowStuffWorks

Chart: The Countries With The Most Left-Handed People

Psychologists explain how left-handed people are different to righties

The Write Stuff for Left Handers - Blog

Evidence left-handed people are exceptional