Communion. The typical person had a communion
score of 3.75 (on a scale from 1 to 5) on the placebo day;1
the coefficient for drug indicates that communion scores
were on average 0.12 units greater on the oxytocin day
than on the placebo day, 95% confidence interval (CI) =
[−0.02, 0.25], t(36) = 1.79, p = .08. Although the 95% CI
includes a zero difference, the majority of the plausible
values were positive, and therefore the results suggest
that the average participant tended to describe himself as
more “kind,” “gentle,” and “warm in relations with others”
after receiving oxytocin than after receiving the placebo.
Critically, as predicted, there was a significant Drug