"Grading a diversity of graduate attributes, such as leadership skills, global citizenship and cultural understanding, will be more challenging compared to grading examinations and traditional assignments. As stated by Quinn and Shurville (2009): ‘the hardest part of implementing experiential learning in both philosophical and practical terms is assessing the graduate attributes that are embodied within it’."
(2012). Exploring an experiential learning project through Kolb's Learning Theory using a qualitative research method. European Journal of Engineering Education.