Aiming at contributing to a better understanding of the current developments, paradoxes and ways to deal with youth political participation in Europe, the main research question of the PARTISPACE project is: How and where do 15- to 30 year-old young people participate differently across social milieus and youth cultural scenes and across eight European cities (framed by different national welfare, education and youth policies)? As part of a proper work package (see Partispace proposal), Action research have been conducted in order to involve young people in local, city-based action research (AR) projects by encouraging and assisting them in carrying out their own research, developing ‘products’, and co-analysing findings. In relation to this research question, this report was intended to evaluate action research processes and methods though the 18 action research project conducted during the Partispace study.