ANSWER:
An operational definition of aggression:
A group of peers are allowed to play and have fun, for about 30mins. This will help them to be in the same state of mind. After the 30mins time, each person's aggression level was measured, as it's assumed that their are all in the same state of mind. The measurement was done by using abusive words on them to record how their will behave. Those that did not react or has a very mild reaction to it were recorded to have zero to 1 level of aggression, which is known as low aggression level. Those that reacted to the abuse by abusing back or forbidden the abuse, without shouting or being harsh were recorded to have 2 to 4 level of aggression, which is known as medium aggression level. While those that reacted in a harsh manner by shouting and abusing back in a manner that shows their are ready to fight, were recorded to have 5 to 10 level of aggression, which is known as high level of aggression.
The measurement used in this example is Categorical and the type of measure been used called Behavioral measure.
Soccer, being played from the 2nd and 3rd century BC in China, have only been popular from 1815 to universities and colleges which was spearheaded by English school and Eton College and developed set of procedures to play which have been called as the Cambridge rules by the Cambridge University in 1848.
I'm guessing none? because a rock is not living in the first place
