Can you ask on english please?
Answer:
Yes, people are less polite these days than in the past
Explanation:
In the past people would not call another person *umb to their face because it was considered improper and rude while in today's day in age people will say a variety of rude words just to simply have the last word in an argument.
The answer to this question is Bias
When researchers are being biased in their analysis, all of their analysis become really unreliable because it does not fully reflect to the truth.
To make the result of the researchers fully reliable, researchers need to base their analysis solely to the data at hand
