Stage 3 (face validity) of the project is being undertaken in five other countries alongside the work in England. This includes:
| Country | Language | Team |
| Argentina | Spanish | Federico Augustovski (PI), Maria Belizan, Rocio Rodriguez, Luz Gibbons |
| Australia | English | Brendan Mulhern, Lidia Engel |
| Germany | German | Wolfgang Greiner (PI), imone Kreimeier, Ole Marten, Kristina Ludwig |
| China | Chinese | Nan Luo (PI), Zhihao Yang |
| USA | English | Simon Pickard (PI), Andrea Monteiro, Maja Kuharic |