Intuitively it would seem that vocabulary would be of great importance and many researchers have cited vocabulary as being of prime importance as a factor influencing the readability of texts.
In order to facilitate readability consider:
- Using a simple summary of the text so that readers can activate appropriate schema;
- Adding appropriate extra textual features;
- Using glosses in appropriate cases;
- Using superordinate terms in an explanation, but with care when rewriting a text because of collocational and register constraints.