Table 3.

Within-trait cross-twin correlations (r) and 95% confidence interval (95%CI) for personal goals and personality (NEO-FFI).

	MZ		DZ-SS		DZ-OS
	r	(95%CI)	r	(95%CI)	r	(95%CI)
	n of pairs = 245		n of pairs = 175		n of pairs = 153
Personal goals
Education	0.43	(0.25–0.61)	0.20	(−0.04–0.44)	0.16	(−0.11–0.42)
Work	0.20	(0.01–0.39)	0.09	(−0.15–0.32)	0.10	(−0.15–0.35)
Own family	0.42	(0.25–0.59)	0.11	(−0.12–0.34)	0.10	(−0.14–0.36)
Parents and relatives	0.46	(0.09–0.83)	0.39	(−0.05–0.83)	0.45	(0.00–0.89)
Friends	0.62	(0.45–0.80)	0.26	(−0.05–0.54)	0.22	(−0.09–0.53)
Property	0.47	(0.31–0.64)	0.32	(0.11–0.54)	0.20	(−0.08–0.53)
Hobbies	0.29	(0.07–0.51)	0.25	(−0.03–0.54)	0.14	(−0.10–0.43)
Travel	0.38	(0.15–0.60)	0.08	(−0.21–0.38)	0.05	(−0.20–0.30)
Health	0.11	(−0.09–0.30)	0.28	(0.06–0.50)	0.15	(−0.10–0.40)
Self	0.39	(0.12–0.65)	0.34	(0.02–0.65)	0.15	(−0.11–0.43)
Life philosophy	0.26	(0.00–0.52)	0.47	(0.23–0.71)	0.37	(0.15–0.60)
Personality (NEO-PI)
Extraversion	0.63	(0.55–0.70)	0.20	(0.05–0.34)	0.27	(0.13–0.42)
Neuroticism	0.62	(0.54–0.70)	0.27	(0.13–0.41)	0.18	(0.02–0.33)
Openness	0.69	(0.59–0.76)	0.35	(0.21–0.48)	0.23	(0.07–0.37)
Agreeableness	0.46	(0.36–0.56)	0.14	(0.00–0.29)	0.19	(0.04–0.34)
Conscientiousness	0.55	(0.45–0.63)	0.18	(0.04–0.32)	0.09	(−0.06–0.25)

MZ = Monozygotic twins, DZ = Dizygotic twins, SS = Same sex, OS = opposite sex.