That is highly disingenuous. The advice they gave, in context, was:
1.Speak Up _in Class_
Raise your hand, even when you’re not sure about the answer. Avoid editing what you want to say in your head, and try not to worry about being wrong. Speaking up isn’t about having the perfect answer. It gives you the experience of thinking on your feet, debating with others, and wrestling with an idea—all crucial skills that you’ll use in every area of your life.
1.Speak Up _in Class_
Raise your hand, even when you’re not sure about the answer. Avoid editing what you want to say in your head, and try not to worry about being wrong. Speaking up isn’t about having the perfect answer. It gives you the experience of thinking on your feet, debating with others, and wrestling with an idea—all crucial skills that you’ll use in every area of your life.
- http://banbossy.com/girls-tips/