Table 2 Outline of each of the measures collected during the pre-intervention and post-intervention research assessments, their method of assessment, and their reliability at pre-assessment
Domain | Variable | Method of Assessment | Reliability Index at Pre-Assessment (Cronbach’s α) |
|---|---|---|---|
Demographic information | |||
Age | Questionnaire | Not applicable | |
Ethnicity | Questionnaire | Not applicable | |
Sex at birth | Questionnaire | Not applicable | |
Gender | Questionnaire | Not applicable | |
Sexual Orientation | Questionnaire | Not applicable | |
Pubertal Status | Questionnaire | Not applicable | |
General mental health and wellbeing | |||
Strengths and Difficulties Questionnaire [24] | Questionnaire | 0.52 | |
Me and my feelings [13] | Questionnaire | 0.70 | |
Warwick and Edinburgh Mental Wellbeing Scale (WEMWBS; [61] | Questionnaire | 0.89 | |
Depression | |||
Patient Health Questionnaire-8 [32] | Questionnaire | 0.72 | |
Anxiety | |||
Generalised Anxiety Disorder Assessment-7 [59] | Questionnaire | 0.84 | |
Working memory | |||
Backwards Digit Span [51] | Task | Not applicable | |
Substance misuse | |||
Alcohol Use Disorders Identification Tests (AUDIT; [6] | Questionnaire | Not applicable in current sample | |
Drug Use Disorders Identification Test (DUDIT; [67] | Questionnaire | Not applicable in current sample | |
Emotion perception | |||
Interpretation Bias Task [47] | Task | Not applicable | |
Emotion Intensity Morphing Task [7] | Task | Not applicable | |
Attributional styles | |||
Attributional styles questionnaire [48] | Questionnaire | 0.54 (positive subscale), 0.61 (negative subscale) | |
Positive and negative emotion regulation | |||
Emotion reappraisal task—with images | Task | Not applicable | |
Emotional reappraisal task—with scenarios | Task | Not applicable | |
The emotion regulation Questionnaire for Children and Adolescents [27] | Questionnaire | 0.78 | |
Interoception | |||
Phase adjustment task [49] | Task | Not applicable | |
Interoceptive Accuracy Scale [44] | Questionnaire | 0.92 | |
Interoceptive Attention Scale [20] | Questionnaire | 0.92 | |
Social relationships and interpersonal difficulties | |||
Peer social networks | Questionnaire | Not applicable | |
Inventory of Parent and Peer Attachment [3] | Questionnaire | 0.75 (female caregiver), 0.81 (male caregiver), 0.82 (peers) | |
Bullying: Multidimensional Peer Victimization Scale [45] | Questionnaire | 0.85 | |
UCLA Loneliness Scale [53] | Questionnaire | 0.80 |