Items % of agreement % of disagreement Relative error (%)
3 4 96 4.07
7 38 62 10.08
8 93 7 5.30
9 26 74 9.11
10 20 80 8.31
16 21 79 8.46
17 87 13 6.99
Other items 50 50 10.39
Table 1: Sampling error according to items from the questionnaire of attitude towards soybean and its derivatives.