Table 11 Quality of questions over all three topics
From: Evaluation of a question generation approach using semantic web for supporting argumentation
Understandability | Relevance | Usefulness | |
|---|---|---|---|
Mean (s.d.) | Mean (s.d.) | Mean (s.d.) | |
System-GQ | 2.25 (0.82) | 1.91 (0.82) | 1.75 (0.73) |
Human-GQ | 2.41 (0.76) | 2.23 (0.81) | 2.17 (0.78) |
Difference | t = 1.78 | t = 3.49 | t = 4.94 |
Significance | p = 0.0758 (not significant) | p = 0.0005 (significant) | p < 0.00001 (significant) |