According to the most recent literature on readability, the degree of readability appears to be, at least to some extent, connected to the textual genre of the document under evaluation (Kate, 2010;Štajner, 2012;Dell'Orletta et al., 2012): linguistic features correlated with readability are also genre dependent.
the results achieved in this case study are in line with those obtained by (Sheehan, 2013) who demonstrated that, when genre effects are ignored, readability scores for informational texts (e.g.