What are the primary types of criteria used to analyze learners?

References :

http://www.myteacherpages.com/webpages/mkiva/university.cfm?subpage=1114844

https://onlineacademiccommunity.uvic.ca/learningdesign/wp-content/uploads/sites/1178/2015/06/Lixin-eBook.pdf

http://gailalleynebayne.weebly.com/uploads/2/3/5/2/23521060/module_6-instructional_design.pdf