Used in the context of either giving a shit about something or not. The combination, to be used, has to pass two requirements: 1) That something is within you circle of knowledge and influence and 2) You either give a shit or you don't give a shit about it (usually the latter).
Careditude is not a combination of the
words care and attitude, it is a made up word that has roots with the word care. It is basically a nicer way to tell someone you can really give a rats
ass about what they are
talking about without really sounding
like a dick.
John - "Man I am going
broke and it's because I spend all my money on
porn."
Peter - "Not my problem."
John - "But you don't understand, I can't
stop buying it."
Peter - "Not within my Sphere of Careditude, fag."