... behaviour. © Emerald Group Publishing Limited 2014 Information retrieval Empirical study Task-based information searching Selecting and integrating various heterogeneous search systems is one of the biggest challenges for researchers in the biomedical field (Cohen-Boulakia et al...

.... The results of the empirical studies show that there is a close connection between the students’ problem stages (mental model) in the task performance and the information sought, the search tactics used and the assessment of the relevance and utility of the information found. The corroborated hypotheses...