The document discusses international assessments of problem solving skills by the OECD. It outlines that PISA has assessed problem solving in 2003 (paper), 2012 (computer-based dynamic problem solving), and will assess collaborative problem solving in 2015 (computer-based). For the 2015 assessment, challenges include determining if it will measure individuals or groups, integrating problem solving and social skills, and practical issues regarding sampling, computer capabilities, and scoring. A draft definition of collaborative problem solving competency is provided as the capacity of individuals to effectively engage in a problem solving process by sharing understanding and effort to find a solution.