I've very easy to distract. The efforts there, but if I try to do an assignment and I start thinking about it, I'll easy start thinking about something, one thing leads to another, and before I know it, I'm writing about the Zombie apocalypse on Neptune for my Moby Dick book report.
It depends if I'm doing something I actually want to do. Like painting or drawing, Zeldadungeoning, being distracted, etc.
However, if I'm doing homework or cleaning my room... It took me an entire two weeks to clean my room.
I have purposefully hung shiny objects/drawings/colourful posters all over my walls, to maximise my attention span.
EDIT: To things other than what I have to do.
"What is that shiny object on the other side of the room?"