A Text-Based Chat System Embodied with an Expressive Agent

Table 6

Comparative analysis based on the subjective evaluation between the proposed and emoticon based approaches.

Questionnaire items	Proposed method	Emoticon based method	Significant; level
	Mean (Std.)	Mean (Std.)
Ease of operation	5.4 (0.87)	3.9 (0.84)
Reliability	5 (0.48)	1.7 (0.47)
Expressiveness	5.7 (0.82)	2.3 (0.48)
Suitability	4.4 (0.42)	1.2 (1.07)
Effectiveness	5.6 (0.82)	2.7 (0.51)
Appropriateness	5.6 (0.94)	2.7 (0.69)
Interestingness	6.3 (1.2)	3.5 (0.48)