Table 1 The results of the selected questionnaire items

1. Teachers should use only English in English classrooms.

2.38 (1.02)

19.7

41.8

20.7

16.3

1.4

2. I prefer English-only instruction because it gives me more opportunity to be exposed to English.

2.87 (0.98)

6.3

29.8

40.9

16.3

6.7

3. The more English students use in the classroom, the better they will be at communicating in English.

3.14 (0.93)

3.4

20.2

42.3

26.9

7.2

4. I believe that, regardless of how much English students choose to use, the instructor should use English at all times in the classroom.

2.39 (1.02)

19.2

39.9

27.4

9.6

3.8

5. When I don’t know a word in English, I prefer to have it explained to me in English, rather than Korean.

3.02 (1.01)

8.2

18.3

44.7

21.2

7.7

6. English-only explanation is necessary because the English class should provide a maximum amount of English.

2.72 (0.95)

9.6

29.8

43.8

12.5

4.3

7. If understandable, I prefer English-only instructions to Korean instructions.

3.23 (1.14)

8.7

13.9

39.4

21.6

16.3