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Results of the dichotic digit test in number of errors in the control and study groups
| Variables | Control group | Mean | SD | Minimum | Maximum |
| FA | 24 | 4.33 | 2.47 | 2.0 | 8.0 |
| ARE | 24 | 1.66 | 3.44 | 0 | 9.0 |
| ALE | 24 | 0.16 | 0.81 | 0 | 4.0 |
| Variables | Study group | Mean | SD | Minimum | Maximum |
| FA | 22 | 39.22 | 8.70 | 20.0 | 56.0 |
| ARE | 22 | 20.27 | 10.12 | 2.0 | 34.0 |
| ALE | 22 | 19.77 | 8.10 | 0 | 36.0 |
FA= free attention; ARE= attention in the right ear; ALE= attention in the left ear; SD= standard deviation.
