Table 5 Quality of questions for topic 1
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 | 2.19 (0.89) | 1.96 (0.87) | 1.69 (0.69) |
Human-GQ | 2.28 (0.80) | 2.14 (0.86) | 2.12 (0.87) |
Difference | t = 0.67 | t = 1.25 | t = 0.39 |
Significance | p = 0.51 (not significant) | p = 0.21 (not significant) | p = 0.0009 (significant) |