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Mean sample characteristics of the three groups studied
| Control | Vocal | Instrumental | |
|---|---|---|---|
| Age |
25.6 ± 5.9 |
25.23 ± 5.43 |
26.65 ± 6.76 |
| Education (1: low 5 high) |
3.4 ± 1 |
3.5 ± 1 |
3.5 ± 0.9 |
| IQ |
100.2 ± 10.7 |
101.9 ± 11.9 |
105.7 ± 14.0 |
| Extraversion/Introversion |
2.75 ± 0.44 |
2.55 ± 0.52 |
2.58 ± 0.53 |
| N of subjects |
40 |
79 |
80 |
| % female | 67.5 % | 65.8 % | 67.5 % |
