I don't think this is limited to girls. I have read in some parenting books about the number of boys being diagnosed with ADHD might be related to this feeling, that they try something and can't get it, then just get frustrated and move on.<p>We have tried to be particularly encouraging with our 18-month old son. From what we have read, often saying "you are so smart" as led to many children giving up when they face a tough task as they feel they must not be smart enough to figure it out. Instead, we say "you worked hard", "good work", "you put time into it", etc. Anything to encourage the act of working rather than how smart he must be.<p>Another book suggested having just 3-5 toys in a room, rather than the 50 we have now, so the amount of concentration is focused instead of moving from one to the next. Now if we can just get the 4 grandparents with just this 1 grandchild to stop buying him things! Probably going to hide everything when they are not here instead.