1. Introduction

   • Monique Boekaerts
   • Peter Nenniger

   EditorialNotes Pages: 3 - 9

2. Motivation and activity

   • Joachim Lompscher

   OriginalPaper Pages: 11 - 22

3. Interest, motivation and learning: An educational-psychological perspective

   • Andreas Krapp

   OriginalPaper Pages: 23 - 40

4. Motivated learning: Studying student * situation transactional units

   • Monique Boekaerts

   OriginalPaper Pages: 41 - 55

5. Individual differences in school mathematics performance and feelings of difficulty: The effects of cognitive ability, affect, age, and gender

   • Anastasia Efklides
   • Maria Papadaki
   • Gregoris Kiosseoglou

   OriginalPaper Pages: 57 - 69

6. On the role of motivation in self-directed learning: The “two-shells-model of motivated self-directed learning” as a structural explanatory concept

   • Peter Nenniger

   OriginalPaper Pages: 71 - 86

7. Individual strategies in a spatial task and how they relate to aptitudes

   • Pascale-Elsa Eme
   • Josette Marquer

   OriginalPaper Pages: 89 - 108

8. Formal reasoning performance of higher secondary school students: Theoretical and educational implications

   • Nicos Valanides

   OriginalPaper Pages: 109 - 127

9. Gender, task contexts, and children's performance on a computer-based task

   • Karen Littleton
   • Helen Ashman
   • Annerieke Oosterwegel

   OriginalPaper Pages: 129 - 139

10. A typology of the three-year-old twin sibling relationship drawn from two different environments: School and home

    • Monique Robin

    OriginalPaper Pages: 141 - 159