With or against Each Other? The Influence of a Virtual Agent’s (Non)cooperative Behavior on User’s Cooperation Behavior in the Prisoners’ Dilemma

Table 3

Means of age group’s game evaluation.

	Age Group
Nonverbal behavior	Students		Seniors		Overall
	M	SD	M	SD	M	SD
Billie provided good arguments for cooperation during the game	3.23	1.25	4.05	0.96	3.64	1.18
Billie gave me the feeling that he knows better and I am better off not to trust him	2.68	1.39	2.00	1.20	2.34	1.33
I perceived Billie as my opponent	2.65	1.33	1.90	1.24	2.28	1.33
During the game I was mostly concerned with how I could maximize my own gains	2.53	1.40	1.75	1.03	2.14	1.28
I often thought about how Billie would decide in this round	4.05	0.96	2.55	1.52	3.30	1.47