Evaluating the Efficacy of a 60-day Emotion Regulation Journal

Change in participants' emotion regulation abilities and habits assessed using the Emotion Regulation Questionnaire.

Change in participants' emotion regulation abilities and habits assessed using the using the Difficulties in Emotional Regulation.

Participants' adherence to the 60-days of activities in the journal assessed using three items: "Currently, what is the last day of the journal you have completed?"; "Have you skipped or not completed any days prior to the latest day you have completed?"; and "Approximately how many minutes do you spend completing a day, within the journal?"

Usability and user experience of intervention group collected during exit interview

Age, preferred gender, socio-economic status, ethnicity, educational attainment, and employment status will be collected.

Depression and anxiety will be assessed using the Hospital Anxiety and Depression Scale. There is a minimum score of 0 and a maximum score of 21 for each anxiety and depression. Individuals with a score of greater than 8 are considered to have considerable symptoms of anxiety and/or depression.

Subjective well-being will be assessed using the Warwick-Edinburgh Mental Wellbeing Scale. There is a minimum score of 14 and a maximum score of 70. Scores above 51 are above mean population mental well-being while a score below 51 is below mean population mental well-being.

Self-Compassion will be assessed using the full version of the Self-Compassion Scale. Minimum score is 1 and Maximum score is 5. Scores from 1-2.5 indicate low self-compassion, 2.5-3.5 indicates moderate, and 3.5-5 indicates high self-compassion.

Past week hours of sitting, walking, mild, moderate, and vigorous physical activity will be assessed using a modified version of the International Physical Activity Questionnaire. A HIGH score consists of vigorous intensity activity on at least 3 days OR 7 or more days of any combination of walking, moderate intensity or vigorous intensity activities. A MODERATE score consists of 3 or more days of vigorous intensity activity and/or walking of at least 30 minutes per day OR 5 or more days of moderate intensity activity and/or walking of at least 30 minutes per day OR 5 or more days of any combination of walking, moderate intensity or vigorous intensity activities. A LOW score is not achieving the high or moderate physical activity levels.

Past week average weekday and weekend occupational and recreational (i.e., leisure) screen time hours will be assessed using four bespoke items (e.g., In the last seven days, on an average weekday, how many hours did you spend using screens for recreational purposes (e.g., watching TV, playing video games)?)

Past week average hours of sleep will be assessed using an adapted item from the Pittsburgh Sleep Quality Assessment: 20 "During the past week, how many hours of actual sleep did you get at night?". The minimum score is 0 representing 7 or more hours of sleep and the maximum score is 3 representing less than 5 hours of sleep. The higher the score, the worse the sleep duration.