Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
Christian Lundahl (born 18 February 1972) is a Swedish professor of education at Örebro University. Lundahl specializes in the assessment for learning, evaluation and Swedish educational research. Lundahl has worked as a consultant to the National agency of education and the National agency for school inspection on several occasions.
References
"CV". skoloverstyrelsen.se (in Swedish). 31 March 2014. Retrieved 13 February 2016.