Yes, I created a topic with plenty of examples of meaningless correlations, for example the more plastic waste scrap you import, the more murders by firearms your country gets. There, the correlation was something like 0.8. In the study quoted above, the correlation was something like 0.3. Simplifying things, you could say that a 0.3 correlation means there's 30% chance that it would be true that videogames would cause more aggressiveness or more aggressiveness would cause more videogame playing, or a combination.
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