Outcome measures used in study
| Outcome measure | Approach/method | Informant | Variable(s) | Completion time | Assessment timepoint |
| Participant characteristics | |||||
| Demographic information | Questionnaire | Child/parent | Sex assigned at birth, gender (if different), age, ethnicity. | 5 min | Time 1 |
| Participant characteristics | Questionnaire | Child/parent | Diagnoses, medications and sports involvement. | 5 min | Time 1, 2, 3, 4 |
| Mobility: 6 min walk test | Physical assessment | Child who is ambulatory | Distance walked (metres) in 6 min. | 6 min+5 min setup time | Time 1, 2, 3, 4 |
| Mobility: 6 min push test | Physical assessment | Child who propels a manual wheelchair | Distance covered (metres) in 6 min. | 6 min+5 min setup time | Time 1, 2, 3, 4 |
| Issue identification and goal attainment | |||||
| Canadian Occupational Performance Measure (COPM) | Semistructured interview | Child with parent support if required | Client identifies an issue and then rates self: 1 (can’t perform/not satisfied) to 10 (can perform/very satisfied). | 5 min | Time 1,2 (intervention group only) |
| Goal Attainment Scaling (GAS) | Interview using information from COPM goal-setting | Child with parent support if required | 5-point scale, ranging from −2 (current level) to +2 (exceeds expectations). Zero is expected level of attainment after intervention. | 10 min | Time 1,2 (intervention group only) |
| Behavioural assessments | |||||
| Habitual Activity Estimation Scale | Self-completed questionnaire | Child | 28 questions assessing intensity and duration of typical weekday and weekend activity. | 10 min | Time 1,2,3,4 |
| Dietary Screener Questionnaire | Self-completed questionnaire | Child | 30-day dietary intake: fruits, vegetables, sugars & sugar-sweetened beverages, dairy, whole grains, calcium, fibre, red and processed meat. | 10 min | Time 1,2,3,4 |
| Psychosocial assessments | |||||
| Arc Self-Determination Scale | Self-completed questionnaire | Child | Three subscales that assess autonomy (21 items), empowerment (15 items) and self-realisation (15 items). | 15 min | Time 1,2,3,4 |
| Exercise Self-Efficacy Assessment | Self-completed questionnaire | Child | 17 items assessing perceived confidence in ability to be successful at being physically active. Yes/no response. | 5 min | Time 1,2,3,4 |
| Self-Efficacy for Healthy Eating | Self-completed questionnaire | Child | Nine items assessing confidence eating ‘healthy foods’ across three domains: Social, emotional and normal situations. Response on 5-point Likert scale. | 5 min | Time 1,2,3,4 |
| Body composition | |||||
| Weight | Physical assessment | Assessor | Chair scale, to nearest 100 g. | 5 min | Time 1,2,3,4 |
| Height/length | Physical assessment | Assessor | Standing height or supine length (segmental if contractures); ulna and arm length as proxies if height/length not possible. | 5 min | Time 1,2,3,4 |
| Waist circumference | Physical assessment | Assessor | Flexible tape measure at the narrowest level between the lower costal border and the iliac crest, over light clothing. | 5 min | Time 1,2,3,4 |
| Skinfold thickness | Physical assessment | Assessor | Tricep and subscapular skinfold thickness using Lange callipers. | 10 min | Time 1,2,3,4 |
| Home and environment assessment | |||||
| Revised Family Eating and Activity Habits Questionnaire | Parent-completed questionnaire | Parent | 32 items about the health behaviours of family members as well as the nature of the home environment. | 10 min | Time 1,2,3,4 |
| International Study of Childhood Obesity, Lifestyle and the Environment Questionnaire | Parent-completed questionnaire | Parent | Full scale is 103- items assessing the child’s neighbourhood and home environments. Responses vary from 4 to 5-point Likert scale, yes/no and frequency. | 10 min | Full scale: time 1,4 Sub-scales D,E,G,H: time 2,3 only |
| Coach measures | |||||
| Solution Focused Fidelity instrument | Self-complete questionnaire | Coach | 13 items rating key aspects of Solution Focused Coaching best practices on a 10-point Likert scale. | 5 min | After every coaching session |
| Pediatric Rehabilitation Intervention Measure of Engagement–Service Provider | Self-complete questionnaire | Coach | Three-part questionnaire: (1) One overall rating of child’s engagement during the coaching session; (2) Likert scale rating on three different aspects of engagement; (3) Any comments on factors that may have influenced the child’s engagement during the session. | 5 min | After every coaching session |