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"The researchers find "clear evidence that peer driven students on average perform worse than the ability driven in terms of both average and final grade," though they acknowledge that the "effect is small in magnitude" -- about two-tenths of a grade point on a 30 point grade scale."
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Taking the "Open Science" movement to television...
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"0. There are no paradoxes.
This is the overarching rule, to which all other rules are subservient. Itâs not a statement about physics; itâs simply a statement about logic. In the actual world, true paradoxes â events requiring decidable propositions to be simultaneously true and false â do not occur. Anything that looks like it would be a paradox if it happened indicates either that it wonât happen, or our understanding of the laws of nature is incomplete. Whatever laws of nature the builder of fictional worlds decides to abide by, they must not allow for true paradoxes."