Additional file 1 of Blended therapy for adolescents with chronic health conditions to increase fatigue-related self-efficacy (Booster): protocol for a single-case multiple baseline study

Supplementary Material 1: Supplementary Table 1. Risk of Bias in N-of-1 Trials (RoBiNT) scale for Booster study 2. Supplementary Fig. 1. Study overview 4. Supplementary Table 2a. Booster’s guiding principles 5. Supplementary Table 2b. Booster’s logic model 6. Supplementary Table 2c. Participatory design process 9. Supplementary Table 2d. Booster app functionalities 10. Supplementary Fig. 2. The game 11. Supplementary Fig. 3. Other general functionalities 12. Supplementary Fig. 4. Measurement Period-specific functionalities 13. Supplementary Table 3. Participant timeline 14. Supplementary Table 4. Example of a biopsychosocial model of fatigue 15. Supplementary Table 5. Items in ESM-survey of Measurement Period 16. Supplementary Table 6. Proposed covariates measured at baseline and follow-up 17. Supplementary File 1. Construction and validation of a single Item for measuring fatigue-related self-efficacy 18. Supplementary File 2. Usability questionnaire 19. Supplementary File 3. Semi-structured interview – topic guide 20. Supplementary references.