Abstract
In a problem-based curriculum students generate learning issues that are the guidelines for their individual study. This study investigates the essential characteristics of learning issues and the importance they have in each year of training. Two (free response) questions about characteristics of learning issues were answered by medical students. The response was 69% ( n = 495). Students reported three important characteristics which were brought together in one definition: a useful learning issue contains a keyword that demarcates the content of a certain topic to be studied and is formulated concisely and unambiguously for all members of the tutorial group. There were small differences in the importance of the characteristics between years of training.