An impact study was carried out by Oxfam and partners in Cambodia in 2014. The study included a broad set of indicators, covering the major dimensions of poverty and injustice as described in Oxfam’s rights-based approach. Data were collected by partners in their own working areas with the help of a smart phone app, which transferred data into a central data base, managed and analysed by the World Citizens Panel team of Oxfam Novib in The Hague. The interviewees were randomly selected and are a representative sample of the people participating in the projects of Oxfam and partners in Cambodia and a comparable control group.