The working world has changed, and it will continue to do so as job functions evolve, new technologies are introduced and peaks and troughs in the economy each play their parts in changing the ever structure of the workforce. I've written before about the notion of tenure, permanency and lifetime employment being gone. So too has the traditional "reward package".
I.Q. (intelligence quotient) in general, is an assessment of your ability to think and reason. IQ score is a standardized way of comparing this ability with the majority of people the same age as you are.
A score of 100 means that compared to these people in your general age group that you have basically an average intelligence. Your score on an IQ test will give you a pretty accurate indication of the ability you possess to think, reason and solve problems which can often be critical in many phases of your life.