The techniques used in PM+ are not new. The programmes draw upon well-known and evidence-based strategies: problem solving counselling combined with selected behavioral techniques. In combining these strategies, the programmes address both psychological problems (for example, stress, fear, feelings of helplessness) and, where possible, underlying practical problems (for example, livelihood problems, conflict in the family and so on).

All modules have or will undergo strict testing under real conditions by academic researchers to make sure that they work and are safe. PM+ Individual has been tested with very good results in Pakistan and Kenya. PM+ Group, PM+ Early Adolescent Skills for Emotions (EASE) and Step by Step are still being tested. The STRENGTHS project will contribute to the testing and further development of these three modules.

The STRENGTHS project goes a step further in the research by also looking at the cost effectiveness of the intervention and at strategies for implementation in different contexts.