A large-scale field experiment shows giving advice improves academic outcomes for the advisor.

Proc Natl Acad Sci U S A · 2019 · PMC6660764 · PMID 31285348

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0.0690

closest p · 1.4× alpha

0.0690

boldest claim

The sentences

marginally significantP = 0.069so close (0.05 < p ≤ 0.1)

In the fourth quarter, advice giving produced a marginally significant increase in math grades ( B = 0.93, SE = 0.51, 95% CI = −0.07 to 1.94, n = 1,758, t [1,739] = 1.82, P = 0.069, d = 0.09) and a nonsignificant increase in target grades ( B = 0.70, SE = 0.53, 95% CI = −0.34 to 1.75, n = 1,691, t [1,672] = 1.32, P = 0.187, d = 0.06).

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