Table 2.

Associations between similarity and Big Five personality traits (profile correlation analyses)*

Similarity index	Extraversion			Openness			Agreeableness			Conscientiousness			Neuroticism
	r	P	d	r	P	d	r	P	d	r	P	d	r	P	d
Overall similarity	−0.05	0.42	−0.10	0.004	0.94	0.01	0.12	0.04	0.24	0.002	0.97	0.004	−0.12	0.03	−0.24
Distinctive similarity	−0.05	0.40	−0.10	0.03	0.64	0.06	0.04	0.48	0.08	−0.01	−0.79	0.02	−0.02	0.70	−0.04

The coefficients correspond to Pearson’s correlations between each similarity slope and participants’ Big Five traits. Cohen’s d is presented for comparison purposes. Distinctive similarity here captures the degree to which 2 profiles are similar in ways that differ from an average profile (i.e., factoring out normativeness). However, the degree to which a current partner profile is similar to the self-profile (i.e., corresponding to self-partner similarity in Table 1) is not taken into account.