The Meyers-Briggs 16 "type" approach is mirrored by David Keirsey in his book "Please Understand Me II: Temperament, Character, Intelligence", which is an excellent guide and very reasonably priced (MSRP of $20 in paperback). There's a questionnaire in the back to help determine type; it's nowhere near as good as the long form Meyers-Briggs, but it's still fairly reasonable at about 70 questions, as I recall.

From memory, INTJ is often correlated with contingency planning, which may be related to why so many of us are showing up in that category. If everything is fine, I'll read SSC. If this happens, that, unless the other, in which case .... drop unnecessary... rebuild... indexes... backups.... restore.... failover... offsite.... tape library.... DBCC CHECKDB... update resume.