Is there a way to test groups of people for how calm they are?

This could be incredibly useful. Generally, I believe the bigger your Intelligence, the calmer you are. I believe people are getting more anxious every decade since the 1800's. I believe Calhoun's experiment proves that anxiety is linked with hypersexuality, sexual deviation, general aggressiveness, laziness or even NEET behavior, general irrational behavior, if population density implies anxiety.

We know this far that the tribal races have a hard time being calm in the civilised society, and we know that their intelligence is significantly lower. We know that if civil is understood as calm, a civilised race can only be a calm, analytical, race. So it makes sense to measure how calm we are, we could use brain scans, simulations, games, ventilation-heart profiles, general health profiles, drug preferences census, personality comparisons, family history etc

I was thinking that mental chronometry is a wrong concept because IQ tests can reward being wrong and fast more than being slow and right, so tests should have a reasonably big time and it shouldn't be taken into consideration. Therefore rendering the words "retard", "retarded", "slow", for being Wrong, incorrect. It was never a correct association. And thus, I propose the new word "anxious", for being logically Wrong.