Instrument | Description/Construct | Time point |
---|---|---|
Interviews | ||
Diagnostic interview for psychiatric disorders, short version (Mini-DIPS; [53]) | Structured interview to assess psychiatric disorders according DSM-5. Duration: approx. 45 min. | t1, t2 |
Eating Disorder Examination (EDE; German version [54]) | Structured interview to assess eating disorder pathology Duration: approx. 45 min. | t1 |
Therapists ratings | ||
Clinical global impression scale [55] | Measure of symptom severity, treatment response and the efficacy of treatments in patients with mental disorders. 7 items rated by the clinician. | t1, t2 |
Self-report questionnaires | ||
Sociodemographic questions (own items) | Sociodemographic questions (gender, age, nationality, sick leave days, prior treatments etc.). 35 items. | t1 |
Patient’s expectancies regarding the therapy (own items) | Questions to assess attitude and expectations of the patients towards the internet-based treatment. 5 items. | t1 |
Work and Social Adjustment Scale (WSAS; [56]) | Questionnaire to assess functional impairment (in the area of work, family and social functioning). 5 items. | t1, t2, t3 |
Rosenberg Self-Esteem Scale (RSES; [57] | Measurement of self-esteem. 10 items. | t1, t2, t3 |
Ein Messinstrument zur Erfassung subjektiver Kompetenzerwartungen (ASKU; [58]) | Assessment of subjective expectation of competency. 3 Items. | t1, t2, t3 |
Sensitivity to Rejection Scale (MSR; [59]) | Scale to measure sensitivity to rejection, submissiveness and ability to deal with threat and hostility. 9 items. | t1 |
Beck Depression Inventory II (BDI-II; German version [60]) | Measure of the severity of depressive symptoms. 21 items. | t1, t2, t3 |
Beck Depression Inventory Fast Screening (BDI-FS; [61]) | Short assessment of depressive symptoms (excluding somatic symptoms). 7 items. | Weekly during waiting time and treatment |
Beck Anxiety Inventory (BAI; German version [62]) | Measures of the severity of anxiety symptoms. 21 items. | t1, t2, t3 |
Eating Disorder Examination-Questionnaire (EDE-Q; German version [63]) | Assessment of eating disorders pathology during the past 28 days. 4 scales: eating concerns, weight concerns, restraint eating, shape concerns. 28 items. | t1, t2, t3 |
Dutch Eating Behavior Questionnaire (DEBQ; German version [64]) | Questions to assess emotional eating. 10 items. | t1, t2, t3 |
Weekly Binges Questionnaire (WBQ; [12]) | Questions to assess frequency of binge-eating episodes and regularity of eating behavior. 7 items. | Weekly during waiting time and treatment |
Thought-Shape Fusion Questionnaire (TSF; [65]) | Assessment of body-related cognitive distortions triggered by fattening/forbidden foods. 17 items. | t1, t2, t3 |
Food Craving Questionnaire (FCQ trait, short version; [66]) | Measure of the intensity of food cravings on a multidimensional level. 15 items. | t1, t2, t3 |
Difficulties in Emotion Regulation Scale (DERS; German version [67]) | Assessment of central aspects of affective experiences and emotion processing. 36 items. | t1, t2, t3 |
Negative Effects Questionnaire (NEQ; [68]) | Questionnaire to assess potentially adverse and unwanted events in psychological treatments. 32 items. | t2, t3 |
Adapted version of the Working Alliance Inventory (WAI-SR; [69]) | Assessment of main aspects of therapeutic alliance, resource activation, problem actualization, session outcome. 23 items. | Weekly during treatment |
Final evaluation of the internet-based treatment (own items) | Assessment of self-reported estimation of therapy outcome. 9 items. | t2, t3 |
Usability | ||
System Usability Scale (SUS; [70]) | 10 items to assess usability and user friendliness. | t2 |
Appreciation [71] | Three-item scale to assess to what extent the media experience was considered meaningful, thought-provoking, and moving. | Weekly during treatment |
Emotional Engagement with Character [72] | Four-item subscale to assess emotional engagement with a character; used to measure the engagement with the character of a fictional former patient, whose presence guided the patient through the Internet-based treatment sessions. | t2 |