Table 2.
Mean-level Changes in Narcissism and the Facets of Narcissism
| Trait | M Δ age 18 – age 41 | SD Δ age 18 – age 41 | Cohen’s d |
|---|---|---|---|
| Overall narcissism | −0.71 [−0.89, −0.52] | 0.89 | –0.79 [–0.95, −0.63] |
| Facets modeled separately Leadership | −0.53 [−0.69, −0.37] | 0.79 | −0.67 [−0.83, −0.51] |
| Vanity | −0.45 [−0.64, −0.25] | 0.97 | −0.46 [−0.62, −0.30] |
| Entitlement | −0.43 [−0.70, −0.16] | 0.52 | −0.82 [−0.98, −0.66] |
| Leadership controlled for vanity and entitlement Leadership | −0.16 [−0.40, 0.07] | 0.75 | −0.22 [−0.38, −0.06] |
Note. Values in brackets are 95% confidence intervals.