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Are you a responsible and mature only child, or a charming, creative, yet slightly irresponsible youngest child?
A video from ASAP science we reported on earlier this week gave an overview of current theories about how birth order impacts on personality.
As the presenters of the video, Mitchell Moffit and Greg Brown, point out no one's personality is predestined from birth, but it is interesting to see how they apply in the real world.
With that in mind, we created this quiz to test if we can tell you what position you hold in your family. Let us know how you do.
More: What the order you were born in says about you