The term IQ, or Intelligence Quotient, generally explains a score on a test that rates the subject's cognitive ability. I remember that I took an IQ test when I was in the middle school. At that time, I believe that the high IQ is the most important factor to be outstanding compared to other students in academic performance. However, there were some exception cases; my teacher mentioned that she was surprised to see that some students with the low IQ score were very good at other mathematics tests.
I still somewhat believe that there is a bit correlation between IQ and job performance. In addition, it is mentioned in the Chapter 9 that IQ scores predict performance across a wide variety of occupations, with the average correlation about 0.5. In addition the correlation between IQ and job performance is even higher among the jobs that require more mentally demanding occupations such as physician or lawyer. Many psychological studies support the correlation between a high IQ score and performance at work. From my experience, I observe that employers, especially in companies in Korea, frequently use the IQ score or a score on a test that the companies develop to identify the best candidates.
However, some people argue that the IQ score is not an absolute factor that can decide performance at work. In addition, they argue that there are other sociological factors such as personality, peer relation and communication skills besides the IQ scores might be playing a bigger role in performance at work.
Do you think that high IQ scores mostly matter to achieve better work performance? Or other sociological factors mostly matter?
Here is the free IQ test website