Is there some other correlation between owls and being owls that's excluded from this study? Do they tend to use drugs or alcohol more? Do they tend to date mor

Is there some other correlation between owls and being owls that's excluded from this study? Do they tend to use drugs or alcohol more? Do they tend to date more? Do they tend to watch more television? Play video games more late at night? This is an interesting study that doesn't necessarily suggest later class times will fix the issue but this could be a bit of a "wicked problem" https://en.wikipedia.org/wiki/Wicked_problem https://en.wikipedia.org/wiki/Wicked_problem