Yes this is true this was the one of the units I was working on in school
Lack of consent, lack of informative material, and Philip Zimbardo was both the experimenter and the prison marshal so he wouldn’t let the prisoners leave
He most likely lacks the ability to read because of a disability called “Dyslexia”. A lot of times they are place in remedial special classes, or placed in normal classes with help from a therapist or someone who specials in IEP. Dyslexia is considered an special learning disorder.