Abstract
Cooperative problem solving (CPS) is an essential ability in people's daily life. When individuals with different problem-solvers' characteristics (orientation and style) are assigned to different group sizes to solve social tasks, what are the differences in the performance of CPS ability? Based on this, through online experimental tasks, the present study examined the effect of problem-solving orientation and style on CPS ability in online social tasks. Meanwhile, it explored the role of group sizes as an environmental variable. The results showed that the more positive the problem-solving orientation, the better the performance of individual CPS ability. In addition, the more rational the problem-solving styles and the larger the group sizes, the higher the scores of participants' CPS ability. This study provides a new theoretical perspective for the complex relationship between the characteristics of problem solvers and CPS ability, and also provides empirical support for the cultivation of the CPS ability of adolescents.