Covariate

Coefficient

S.E.

95% CI

t-value

P

% male

0.0053

0.0259

(−0.0498, 0.0605)

0.2964

0.8393

Mean age

−0.2209

0.1447

(−0.5361, 0.0943)

−1.5217

0.1527

Year of publication

−0.0134

0.1082

(−0.2545, 0.2276)

−0.1242

0.9036

% of students married

0.0361

0.0474

(−0.0644, 0.1365)

0.7613

0.4576