More on youth development and the 40 Developmental Assets needed by 12 to 18 year olds, as described by the Search Institute.

3) Integrity: where teens act on their convictions and stand up for their beliefs.
Defending personal values may sometimes mean your teens are on the receiving end of intolerant or belittling responses from their friends or acquaintances. Your support is crucial when this happens.

4) Honesty: where teens "tell the truth even when it is not easy."
Realize that asking demanding questions (“Did you throw that at your sister?”), when you already know the answer, may corner them into lies if they think you might be fooled (“No, I dropped it and it hit her.”)