What is Spiritual Quotient?

There is I.Q.(Intelligence Quotient)on which there is a lot of research and usage……

There is E.Q.(Emotional Quotient) on which also there  is 

a lot of study…

So also there is Spiritual Quotient…..

Why is there no S.Q.(Spiritual Quotient)work or research.?

S.Q. technology is going to be a very importantant part of the human personality in times to come along with computer technology.

Dont the two go hand in hand?