“…While they often show examples and redesigns, they do not offer an empirical quantification of the benefits of visual alternatives to prose. Few studies sought to experimentally evaluate readers’ comprehension, and while the results of these studies seem encouraging, their validity is affected by methodological limitations: in one study, only a small part of the contract included and tested diagrams (Mamula & Hagel, 2015); in another, the participants were university students, and the visual version of the contract used in the experiment was a mock-up created just for the study (Passera, 2015); another study used explanatory diagrams, but the sample of participants was very small, and the statistical analysis was not thorough (Passera, 2012); and in another, the main finding was that visual elements increase the time spent reading software license agreements, but the increased comprehension of the agreement seemed to be a direct function of the increased reading time (Kay & Terry, 2010). Also, in these studies, the terms visualization and design are used to refer to quite different expressions of visual language: layout and overall document design (Waller et al, 2016), layout and icons (Passera, 2015), explanatory diagrams (Passera, 2012), illustrations and vignettes (Kay & Terry, 2010), and multimodal genres such as comics (Haapio et al, 2016).…”