Badania korelacyjne (obserwacyjne) kontra eksperymenty

A recent study showed that players of a certain video game tend to perform better if they take breaks. The study involved analyzing data from

242,000

matches played by

16,665

players of League of Legends, a popular online game. The data showed that players who took regular breaks, on average, performed better than those who did not.

What conclusion can they draw from this study?

(Choice A)
Taking regular breaks caused the players to perform better.
(Choice B)
Performing better wore out the players and caused them to take more breaks.
(Choice C)
Any player in this study can perform better by taking more breaks.
(Choice D)
For any two players in this study, the one who took more breaks also had better performance.
(Choice E)
There was an association between taking breaks and better performance, but it's not necessarily a causal relationship.

Statystyka - program rozszerzony

Kurs: Statystyka - program rozszerzony > Rozdział 6

Zadanie