Table 3. Results from the t-tests analyses for each Dark Triad character trait for self-directedness, cooperativeness, and self-transcendence.

Significant results are marked in bold type.

	Self-directedness				Cooperativeness				Self-transcendence
	t	p	Cohen’s d	rpb	t	p	Cohen’s d	rpb	t	p	Cohen’s d	rpb
Machiavellianism
MNP vs. mNP	−3.56	.000	−0.53	.26	−7.60	.000	−0.86	.39	−1.91	.057	−0.21	.11
MNp vs. mNp	−2.01	.046	−0.32	.16	−2.70	.008	−0.51	.25	0.86	.391	0.14	.07
MnP vs. mnP	−3.05	.003	−0.42	.21	−6.23	.000	−0.91	.41	−2.87	.004	−0.40	.20
Mnp vs. mnp	−3.13	.002	−0.36	.18	−6.05	.000	−1.01	.45	0.24	.813	0.03	.01
Narcissism
MNP vs. MnP	3.56	.000	0.37	.18	−0.84	.401	−0.09	.04	3.73	.000	0.39	.19
MNp vs. Mnp	2.60	.010	0.42	.20	0.56	.575	0.09	.04	1.87	.063	0.30	.15
mNP vs. mnP	2.73	.007	0.43	.21	0.25	.803	0.04	.02	1.42	.158	0.22	.11
mNp vs. mnp	2.79	.006	0.39	.19	−2.38	.018	−0.27	.13	1.43	.153	0.16	.08
Psychopathy
MNP vs. MNp	−3.23	.001	−0.38	.18	−7.86	.000	−0.91	.42	−1.42	.157	−0.17	.08
MnP vs. Mnp	−2.94	.004	−0.39	.19	−6.71	.000	−0.90	.41	−1.98	.049	−0.26	.13
mNP vs. mNp	−2.66	.009	−0.40	.20	−4.05	.000	−0.66	.31	1.20	.233	0.18	.09
mnP vs. mnp	−2.96	.003	−0.35	.17	−7.32	.000	−0.86	.39	1.20	.232	0.19	.10

Notes.

r_pb, point-biseral coefficient.