Accuracy estimation. The results of the accuracy estimation show that there is no consensus between the participants on which text size is best if someone is to read texts accurately. 6 of the 16 participants rated the small text size best, while 6 participants rated it worst. The same effect can be seen for the large text size, where 7 rated it as best and 8 as worst. Only for the medium size there is a more obvious result with 11 participants rating their accuracy in second place. A non-parametric Friedmann test shows that the participants’ rating of their own accuracy was not affected significantly by text size (p > .05).