MrsG is, at this very moment, undergoing a competence based interview for the civil service. Poor girl.
I went through her application and the list of competences she was given last night in a mock interview – it's a complete load of bollocks that serves only to benefit those who can memorise bullshit and speak in hr-babble. Whether you are ideally suitable, experienced or qualified for the job is irrelevant. If you can not display and provide examples of the competencies, you will not pass the interview.
Not impressed. Oh, and I'm the JFDI type too, Jimmy.
However, as hilldodger correctly states – it's just a game. Treat it as such, say what they want to hear and you'll be fine.