Variables | Measurement | Baseline | t1 | t2 |
---|---|---|---|---|
Measures of Feasibility | ||||
Subjective side effects | Inventory for Recording Negative Effects of Online Interventions (INEP-On) [35] | X (IG only) | X (IG only) | |
Internet usage behavior | Internet-Use Expectancies Scale (IUES) [36] | X | X | X |
Therapeutic alliance | X (IG only) | X (IG only) | ||
Client Satisfaction | Client Satisfaction Questionnaire adapted to Internet-based interventions (CSQ-I) [39] | X (IG only) | X (IG only) | |
Formative user feedback | Participants of the IG had the voluntary opportunity to provide formative feedback on: - the duration - positive and negative aspects of each module | After each module (IG only) | ||
Study dropout | Absolute numbers and percentages of participants not completing all measurement points | |||
Intervention adherence | Adherence in the IG was defined as completion of the introduction lesson and 80% of the seven modules up to t1 | |||
Daily mood diary | Median usage of daily mood diary | |||
Measures of efficacy | ||||
Depressive and anxiety symptom severity | Patient Health Questionnaire Anxiety and Depression Scale (PHQ-ADS) [40] | X | X | X |
Health-related quality of life | EuroQol Five-Dimensional Questionnaire - Youth (EQ-5D-Y) [41, 42] | X | X | X |
Coping | Coping with a Disease (CODI) [43] | X | X | X |
Self-efficacy | General perceived Self-Efficacy scale (GSE) [44] | X | X | X |
Symptoms of posttraumatic stress disorder | The Child and Adolescent Trauma Screen (CATS) 7-17 [45] | X | X | X |
Personal growth | Short version of the Stress-Related Growth Scale (SRGS) adapted to AYA with chronic conditions [46, 47] | X | X | X |
Social Support | Sub-scale “Actually received support, recipient” of the Berliner Social Support Scale (BSSS) [48] | X | X | X |
Alcohol consumption | Three alcohol consumption questions from the Alcohol Use Disorders Identification Test (AUDIT-C) [49] | X | X | X |
Further measurements | ||||
Service utilization; medications taken; medical devices used | Child and Adolescents Service Receipt Inventory German Version (CAMSHRI-DE) [50] | X | X | X |
Behavioral activation | Behavioral Activation for Depression Scale (BADS) [51] | X | X | X |
Automatic thoughts | Automatic Thoughts Questionnaire-Revised (ATQR) [52] | X | X | X |
Caregiver reports | ||||
Symptoms of anxiety | Screen for Child Anxiety Related Emotional Disorders (SCARED) [53] | X | X | X |
Symptoms of depression | Mood and Feeling Questionnaire (SMFQ) [54] | X | X | X |
Symptoms of posttraumatic stress disorder | Child and Adolescents Trauma Screen-Caregiver (CATS-C-D) [45] | X | X | X |
Social Support | Subscale “Actually received support, provider” of the Berliner Social Support Scale (BSSS) [48] | X | X | X |