The Learn•Earth partners have run larger and smaller assessments and with different kinds of assessors :

Trainers, craftspeople, earth building specialists, members of our associations, persons speaking or not speaking the language of the candidates, persons having passed an ECVET exam or not …

Our assessors all had a high level of competence in the assessed earth building technique. There was a difference between those who were used to assessment (i.e. teachers) and others, but the latter progressed quickly with practice.