Table 1. Native English-speaking adults, children and Korean experienced and inexperienced adults and children participants. Age, length of residence (LOR), and age of acquisition (AOA) in years are shown with standard deviation in parentheses. Note that AOA for the KEA, KIA groups indicates the age of L2 acquisition in Korea
| Group | Age | LOR | AOA | English use (%) |
| NEA (4 m, 6f) | 21.8(3.0) | - | - | 100 |
| KEA (4 m, 6f) | 23.6(2.5) | 6.6(1.2) | 12.3(1.5) | 47(10) |
| KIA (4 m, 6f) | 23.1(2.0) | 0.5(0.2) | 12.5(1.8) | 31(13) |
| NEC (4 m, 6f) | 7.5(1.2) | - | - | 100 |
| KEC (4 m, 6f) | 7.1(1.2) | 7.1(1.2) | 2.4(1.6) | 62(18) |
| KIC (4 m, 6f) | 7.3(1.3) | 0.5(0.1) | 6.7(1.5) | 42( 8) |