In those tests, users improved their retention of factual material by a factor of three compared to a visually identical system that didn't run the spacing algorithm. (newscientist.com)
A student must be able independently select factual material to illustrate the essential statements of the topic. (customwritingservices.org)
In many, if not most, cases no privilege can properly be said to attach to first witness accounts and other purely factual material. (newlawjournal.co.uk)