Frequently applied

Very Strong

1.00 ≤ mean score ≤ 1.50

Occasionally applied

Strong

1.51 ≤ mean score ≤ 2.50

Hardly applied

Average

2.51 ≤ mean score ≤ 3.50

Never applied

Weak

3.51 ≤ mean score ≤ 4.50

I don’t know

Very Weak

4.51 ≤ mean score ≤ 5.00