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. Author manuscript; available in PMC: 2017 May 1.
Published in final edited form as: Biol Psychol. 2016 Feb 20;117:43–49. doi: 10.1016/j.biopsycho.2016.02.007

Table 1.

Characteristics of study groups.

Characteristics GG (n = 10) AG (n = 10) AA (n = 20) Group comparison
Age (in years) 22.6 (1.8) 22.9 (1.5) 23.5 (3.3) F(2,36) = 0.44, ns
Verbal intelligence 33.9 (2.7) 33.3 (1.6) 33.6 (1.9) F(2,35) = 0.21, ns
Trait anxiety 32.1 (9.1) 35.2 (5.9) 35.3 (8.5) F(2,35) = 0.62, ns
Social anxiety 14.6 (10.1) 16.9 (7.2) 19.1 (9.7) F(2,35) = 0.82, ns
Empathy 53.1 (7.0 51.7 (8.5) 54.6 (7.2) F(2,35) = 0.33, ns
Social desirability 7.5 (1.8) 7.7 (2.9) 7.2 (2.1) F(2,35) = 0.29, ns
Smoking 1 (10%) 2 (20%) 0 (0%) χ2 (2, N = 40) = 0.1, ns
Ethnicity European 10 (100%) 10 (100%) 19 (95%) χ2 (2, N = 40) = 1.0, ns

Note. Cells values indicate group means. In GG, AG, and AA columns, values in parentheses are SEM (percentages). ns = nonsignificant.