What are learner characteristics?

All sorts of attributes can be used to characterize an individual, e.g. hair color, size of feet, age of car etc.. Any or all of these may be brought into some relation with the individual's ability to achieve some particular goal. We are interested in a subset of attributes: those which one can argue are predictive (in certain circumstances) of the individual's ability to achieve some particular learning goal [1]. In short, learner characteristics are all the relevance characteristics of the learner which have an effect on the learning processes to achieve a learning goal .