All the previous research lines are based on experimental evaluation. Training is always a difficult task, since it is closely related to the context (formal, non-formal and informal, on-site, online, MOOC, etc.), where training is to be assessed. Assessment, and its derived techniques for analyzing the information obtained in the teaching-learning processes, is one of GRETEL's strengths. The objectives of the group in this field will focus on supporting the rest of the lines through the work and analysis of data applied for Learning and Academic Analytics.