The level of abstraction of textual materials: a new and an old measure compared

The level of abstraction of textual material is one factor affecting the difficulty it presents to the reader and so effective ways of assessing it are potentially useful for the teacher and researcher. A ‘new’ measure was compared with an old one and some similarity found in their assessment of science texts. The earlier measure may be the easier one for the non-specialist to use. The results also suggested a rule of thumb which practising teachers might find useful.