Answer : Proportional representation system
Answer:
Unlike a parliament, the assembly's members were not elected but attended by right when they chose. Greek democracy created in Athens was direct, rather than representative: any adult male citizen over the age of 20 could take part, and it was a duty to do so.
In some research, the researchers are not able to use random assignments to divide participants among groups. Instead, they compare preexisting groups, which results in a quasi-experimental design.
Random assignments are those which are given as a matter of chance to ensure fairness and equal opportunity for all participants. Here participants forming multiple groups are with similar characteristics. So all groups are the same at the start of the experiment.
A quasi-experimental design applies a non-random method, and subjects are assigned to preexisting groups. There are some situations where true experiments can't be used for practical reasons. In such cases, a quasi-experimental design is a suitable tool.
To learn more about quasi experimental design here
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