"The prime group is typically something like INTJ on the Myers-Briggs scale."
That would depend on the TYPE of coding. For IT, probably INTJ since you have to have a stick up your backside for some o' that. On the other hand, for SOFTWARE ENGINEERING, ENTP is more likely...
ENTPs are the mad scientists of the Myers-Briggs scale. In a funny demotivational, there was a trebuchet made of pencils and batteries with a caption similar to "making a trebuchet out of office supplies and the pencils off of your INTJ boss's desk"
yeah he probably lined them up, ordered by size.
(oh wait that was ISTJ boss... so maybe INTJ not so anal retentive then?)