Abstract
This study examined the effects of abilities developed through collective activity experiences in the virtual world on collective activity abilities in the real world by structural equation modeling, using panel data from MMORPG players at seven time points. The results showed a significant positive effect from the ability to engage in group activities in the virtual world to the ability to engage in group activities in the real world. In other words, the study revealed some causal effects of social skills acquired in the game world on interpersonal skills in the real world.