Well-being Training for Adolescent Depressive Symptoms (TeenWell Study)

Efficacy will be measured with the PROMIS Pediatric Item Bank (version 3.0) Depressive Symptoms Short Form 8a survey which results in T-scores where a score of less than 55 = None to slight depression, 55.0-59.9 = Mild depression, 60.0-69.9 = Moderate depression, 70 and over = Severe depression.

T-score less than 55 = None to slight anxiety; between 55.0 and 59.9 = Mild anxiety; between 60.0 and 69.9 = Moderate anxiety; and 70 and over = Severe anxiety

The EPOCH Wellbeing score measures wellbeing in each of 4 domains: engagement, perseverance, optimism, and connectedness. It is scored on a 5 point likert scale from 1 (almost never) to 5 (almost always). Higher scores are indicative of increase wellbeing.

T-score less than 55 = None to slight sleep disturbance; between 55.0 and 59.9 = Mild sleep disturbance; between 60.0 and 69.9 = Moderate sleep disturbance; and 70 and over = Severe sleep disturbance.

Total sleep time will be measured through the Biostrap device.

Proportion of sleep time awake, in REM and non-REM sleep will be measured through the Biostrap device and Philips sleep staging algorithm.

The amount of time awake after sleep onset will be assessed with the Biostrap device.

Root mean square of successive differences of heart beats and High-Frequency power will be analyzed.

The Belonging Uncertainty Scale is scored from 1-7 where higher scores indicate more uncertainty about belonging.

Drexel Defusion measures the ability to psychologically distance oneself internal thoughts and feelings. It is scored on a 6-point likert scale from 0 (not at all) to 5 (very much) for a total possible range of scores from 0-50, higher scores indicate increased ability to defuse.

The NIH Toolbox Loneliness pediatric scale is on a 5 point likert scale from 1 (never) to 5 (always) for a total range of scores from 7-35 where higher scores indicate increased feelings of loneliness.

The Perseverative Thinking Questionnaire is scored on a 5 point likert scale, from 0 (never) to 4 (almost always) for a total possible range of scores from 0-60 where higher scores indicate increase repetitive negative thinking.

The Healthy Minds Index is a four factor measure of well-being that assesses skills in awareness, connection, insight and purpose. Each item is rated on a 1 (None of the time) to 5 (all of the time) scale, with higher scores representing greater endorsement of the construct. Subscale scores ranges from 4-30

A 16-item self-report that assesses four facets of mindfulness. Items are rated on a 0 (never or rarely true) to 5 (always true) scale, with higher scores representing greater mindfulness. Scores range from 0-80.

A 4-item self-report rated on a 1 (strongly disagree) to 5 (strongly agree) scale that asks participants to report on their attitudes toward digital interventions. Higher scores reflect more positive attitudes. Scores range from 4-20.

An 11-items self-report asking participants to note any difficulties they experience during meditation or attribute to meditation. Responses are coded quantitatively and qualitatively.

A six-item inventory assessing the degree to which a participant feels alliance with a digital therapeutic. Scores ranges from 6 to 42, with higher scores representing greater alliance.

3-item scales assessing the degree to which a participant feels that their personality and intelligence are innate and unchanging or able to be affected by effort. Items are rated on 1 (Strongly disagree) to 6 (Strongly agree) scale, with higher scores (range 1-6) reflecting greater growth mindset.

A 3-item self-report inventory that asks participants to rate how often they feel negative effects of their technology use. Items are rated on a never(0) to very often (4) scale, with higher scores representing greater problematic internet use.

A 1 to 6 item end of day experience sampling questionnaire assessing the presence, duration, quality and location of social interactions that day.