The phrase "comprehension level" refers to how well someone understands or grasps a particular subject or piece of information. It describes a person's ability to comprehend and make sense of something. Full definition
The paper will score you according to the understanding and comprehension level of your colleague. (paramountessays.com)
His reading comprehension level in 2017 indicates a college and career readiness reading level. (pinkneyfoundation.org)
Also, you require a reading comprehension level above second grade, and it is too long for the average attention span by about 4 or 5 times. (realclimate.org)