In order to make sure your daughter is being recognized as a dependent, revisit the entry in the "My Info, Your household" section. Make sure all the interview screens have been completed accurately:
This should ensure your EITC is computing properly. Also, she will not qualify for the child tax credit if she is over 16, but she may qualify for the $500 credit for other dependents, if she is a dependent.
Here is some more detailed information: What is the Earned Income Credit? Find Out If You Qualify