Very well/well

Pretty well

Partly/not at all

n = 44

Mean

Median

SD

Instruments

20.5% (9)

38.6% (17)

36.3% (16)

42

2.78

3

0.92

Concepts support words

15.9% (7)

40.9% (18)

25% (17)

42

2.69

3

1.07

NI levels

20.5% (9)

43.2% (19)

20.5% (14)

42

2.78

3

0.97