Evaluation of adaptive techniques dependent on educational content

The aim of adaptive hypermedia systems is to present personalized information for the users which are relevant and the way, which is the most suitable for them. In the article we analyse the usage of adaptive techniques Direct Guidance and Links Annotation for e-course personalization. The aim of the analysis is to find out which technique is more effective in meaning of didactic efficiency. We focused on the analysis of suitability of each adaptive technique depending on the type of educational material. In the experiment, we evaluated whether using of direct adaptive technique (e.g. technique of Direct Guidance, Hiding Links) is preferable in the lessons which are aimed at modification of the previous students' knowledge as in the lesson aimed at acquiring new knowledge.