1. Limitations of student control: Do students know when they need help;Aleven,2000
2. Help-seeking and help design in interactive learning environments;Aleven;Review of Educational Research,2003
3. Student goal orientation and help-seeking strategy use. Implications for learning and teaching;Arbreton,1998
4. Off-task behavior in the cognitive tutor classroom: When students game the system;Baker,2004
5. Die Erfassung der motivationalen Orientierung – eine deutsche Form der Motivational Orientation Scales (MOS-D) [The assessment of motivational orientation – a German version of the Motivational Orientation Scales (MOS-D)];Balke;Diagnostica,1995