I did an experiment like this in the mid-90s as an undergraduate for a research methods lab assignment.

I showed true and made-up (NPR Wait Wait style) articles to elderly people (over 70, in a care home), printed in one of 3 formats - on newsprint in the font the NY Times uses, on glossy paper in a somewhat 'friendly' font (like comic sans, but less so), and finally in dot matrix, on green-and-white fanfold, all upper case.

There were remarkably few differences in the first two, for either true or false stories, but NEARLY EVERYONE (like, > 85%) rated the computer fanfold printed stories as being true.

One person's reaction has stuck with me to this day: "If it weren't true, the computer would have rejected it!"