Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Other |
Changes in Body Image |
The 12-item Body Image-Acceptance and Action Questionnaire (BI-AAQ) will be used to assess participants' flexibility with their body image. The items are measured on a 7-point Likert scale, with options ranging from "Never True" to "Always True". The BI-AAQ has excellent internal consistency across three samples (a range = 0.92 - 0.93), good test-retest reliability (r = 0.80), and showed divergent validity with body image dissatisfaction (r = -0.80), dieting (r = -0.70), food preoccupation (r = -0.61), and oral control (r = -0.27). |
Baseline, Mid-point (6 weeks), Post-Intervention (12 weeks) |
|
Other |
Changes in Internalized Weight Bias |
Participant experience with weight-based self-stigma will be assessed using 10 items of the 11-item Modified Weight Bias Internalization Scale (WBIS-M). Items are measured on a 7-point Likert scale with options ranging from "Strongly Disagree" to "Strongly Agree". The WBIS-M has excellent internal consistency (a = 0.94), and is valid against relevant psychological measures. The WBIS-M will be administered at all timepoints to assess changes in weight-based self-stigma over the intervention period. |
Baseline, Mid-point (6 weeks), Post-Intervention (12 weeks) |
|
Other |
Changes in Tobacco Use |
Participants will be asked to self-report if tobacco use has changed during the pandemic via a 5-point likert. Options range from increased a lot to decreased a lot. If participants indicate their tobacco use has changed, they will be asked to identify the primary reason for this change. Changes in tobacco use will be re-assessed at each time point. |
Baseline, Mid-point (6 weeks), Post-Intervention (12 weeks) |
|
Other |
Changes in Alcohol Use |
Past year alcohol consumption will be assessed through the Alcohol Use Disorder Identification Test (AUDIT). Scores on the AUDIT range from 0 to 40; a score over 8 is indicative of problematic or hazardous alcohol use. Changes in alcohol consumption since the beginning of the pandemic will be identified through a 5-point likert. Changes in alcohol use will be re-assessed at each time point. |
Baseline, Mid-point (6 weeks), Post-Intervention (12 weeks) |
|
Other |
Changes in Cannabis Use |
Past year cannabis use will be assessed through the Cannabis Use Disorder Identification Test - Revised. Scores range from 0-31; a score over 8 is indicative of problematic or hazardous use. Changes in cannabis use will be re-assessed at each time point. |
Baseline, Mid-point (6 weeks), Post-Intervention (12 weeks) |
|
Other |
Changes in Physical Activity and Sedentary Behaviour |
Physical activity will be assessed through the International Physical Activity Questionnaire - Short Form. The questionnaire asks about frequency and duration of vigorous (VPA) and moderate physical activity (MPA) over the past 7 days. Weekly Metabolic Equivalents (MET) minutes will be calculated based on responses. Participants will be categorized into high (>1500 MET min/week with 3+ days of VPA or >3000 METmin/week with 7+ days of MVPA); medium (5+ days of 20+ minutes of VPA per day, 5+ days with 30+ minutes of MPA per day, or 5+ days of MVPA that achieves 600+ MET min/week); low (participant does not meet other cut points). Frequency and duration of walking and sitting time are also assessed. The IPAQ has good reliability and criterion validity. |
Baseline, Mid-point (6 weeks), Post-Intervention (12 weeks) |
|
Other |
Changes in Self-Esteem |
Self-esteem will be measured using the 10-item Rosenberg Self Esteem Scale. The scale is a widely used measure that correlates well with other measures of self-esteem and has strong internal consistency (0.92) and test-retest reliability (0.88). Scores range from 4 to 40; a higher score indicates higher self esteem. |
Baseline, Mid-point (6 weeks), Post-Intervention (12 weeks) |
|
Other |
Changes in Loneliness |
Loneliness will be evaluated using a shortened (3 item) version of the UCLA Loneliness Scale. This scale asks about feelings of companionship, being left out, and being isolated from others in the last month, with a 3-item list of answer options (hardly ever, some of the time, often). This scale has good reliability (r = 0.73), validity, and internal consistency (Cronbach's a = 0.84-0.94). The scale also showed convergent validity with other commonly used measures of loneliness. Scores range from 1 to 9; higher scores indicate higher levels of loneliness. |
Baseline, Mid-point (6 weeks), Post-Intervention (12 weeks) |
|
Primary |
Changes in Intuitive Eating Behaviours |
Intuitive eating behaviours will be assessed using the 23-item The Intuitive Eating Scale-2 (IES-2). Items are measured on a 5-point Likert, with options ranging from "Strongly Disagree" to "Strongly Agree". Among women, the IES-2 has good internal consistency (a = 0.87), good convergent validity with the original IES (r = 0.87), and strong test-retest reliability (r = 0.88). |
Baseline, Mid-point (6 weeks), Post-Intervention (12 weeks) |
|
Secondary |
Changes in Anxiety and Depression |
Anxiety and depression will be assessed through the 14-item Hospital Anxiety and Depression Scale (HADS). Seven items assess anxiety while the remaining seven measure depression. There are four response options (0-3), which create scale values from 0-21 for each scale. Three ranges of scores have been identified: 0-7 (non-cases), 8-10 (doubtful cases) and 11-21 (cases). |
Baseline, Mid-point (6 weeks), Post-Intervention (12 weeks) |
|
Secondary |
Changes in addictive eating behaviours |
To assess addiction-like eating behaviours, questions regarding food cravings, loss of control over food and eating, prioritization of food and eating, and guilty feelings due to food or eating will be measured on a 5-point Likert scale with frequencies ranging from "Never" to "4+ times per week". Questions regarding concern from others will be measured on a 3-point Likert scale, with the options "Never", "Yes, but not in the past year", and "Yes, in the past year". |
Baseline, Mid-point (6 weeks), Post-Intervention (12 weeks) |
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