Resource+ is a 30-day smartphone-based program that includes information on local and national resources that professionals can use to learn about organizations and services available to youth with whom they work.

Measured with the Feasibility of Intervention Measure (FIM). This scale measures feasibility using 4 items, each item rated on a 5-point scale and averaged to yield total scale scores between 1 and 5; higher scores indicate greater feasibility.

Measured with the System Usability Scale (SUS). This scale measures the usability of products and designs, specifically effectiveness, efficiency, and user satisfaction using 10 items, each item is rated on a 5-point scale; items calculated to produce a total score between 0 and 100; higher scores generally indicate greater usability.

Measured with the Client Satisfaction Questionnaire (CSQ-8). This scale measures satisfaction using 8 items, each item is rated on a 4-point scale; total sum scores range from 8 to 32; higher scores indicate higher satisfaction.

Measured via objective app analytics.

• App analytics track referrals to our clinical trials made by participants through their study app to (a) other officers and (b) youth in the legal system.
• App analytics track the use by participants of files from their study app that are intended to be shared with youth (i.e., meditation practices to play with youth in the AIM+ app, or resources to be shared with youth in the Resource+ app).

Measured with the PROMIS Depression Scale. This scale measures depression symptoms over the past week using a computer adaptive test/item bank administers of to 12 items, each rated on a 5-point scale; integrated adaptive scoring yields a T-score and standard error (SE); higher scores indicating more depression symptoms.

Measured with the Maslach Burnout Inventory General (MBI-G). This measure contains three scales measuring emotional exhaustion, depersonalization, and personal accomplishment.

• The 9-item Emotional Exhaustion (EE) scale assesses feelings of being emotionally overextended and exhausted by one's work, with items rated on a 7-point scale; sum scores range from 0-54; higher scores indicate greater degrees of experienced burnout.
• The 5-item Depersonalization (DP) scale measures an unfeeling and impersonal response toward recipients of one's service, care, treatment, or instruction, with items rated on a 7-point scale; sum scores range from 0-30; Higher scores correspond to greater degrees of experienced burnout.
• The 8-item Personal Accomplishment (PA) scale assesses feelings of competence and successful achievement in one's work with people, with items rated on a 7-point scale; sum scores range from 0-48; lower scores correspond to greater degrees of experienced burnout.

Measured with the Perceived Stress Scale. This scale measures perception of stress over the past month, i.e. the degree to which situations in one's life are appraised as stressful, using 10-items each rated on a 5-point scale; total sum scores range from 0-40, with higher scores indicate more perceived stress.

Measured with the PROMIS Short Form v1.1 Anger 5a scale. This scale measures anger over the past 7 days using 5 items, each item rated on a 5-point scale; integrated scoring yields a T-score and standard error (SE), with higher scores indicating more anger.

Measured with the PROMIS Short Form v1.0 Sleep Disturbance. This scale measures sleep disturbance over the past 7 days using 8 items, each item rated on a 5-point scale; integrated scoring yields a T-score and standard error (SE); higher scores indicate more sleep disturbance.

Measured with the PROMIS Short Form v1.0 Alcohol Use 7a. This scale measures alcohol consumption, cravings, or difficulty controlling drinking over the past 30 days using 7 items, each item rated on a 5-point scale; integrated scoring yields a T-score and standard error (SE); higher scores indicate more alcohol consumption, cravings, or difficulty controlling drinking.

Measured with the Brief Resilience Scale. This scale measures resilience, i.e. adaptation, thriving, and resistance to illness using 6 items, each item rated on a 5-point scale; averaged to yield total scale scores between 1 and 5; higher scores indicate more resilience.

Measured with the Five Facets of Mindfulness Questionnaire (FFMQ-15). This scale measures mindfulness with subscales for observing, describing, acting with awareness, non-judging, and non-reactivity using 15 items, each item rated on a 5-point scale; total sum scores range from 15-75; higher scores indicate higher levels of mindfulness.

Measured with the Negative Mood Regulation (NMR) Scale. This scale measures regulation of negative mood states using 14 items, each item rated on a 5-point scale; averaged to yield total scale scores between 1 and 5; higher scores indicate a strong belief that one can alter negative moods.

Measured with the Attention Control Scale (ATTC). This scale measures two major components of attention (attention focusing and attention shifting) and consists of 20 items that are rated on a four-point Likert scale from 1 (almost never) to 4 (always); some items are reverse coded and scale scores are calculated as the sum of respective items; higher scores indicate greater attention control.

Measured with the International Positive Affect Negative Affect Schedule Short Form (I-PANAS-SF). This scale measures positive and negative affect, with subscales for positive and negative affect, using 10 items, each item rated on a 5-point scale; sum scores range from 5 to 25; higher scores indicate greater tendency to experiences positive or negative mood, respectively.

Measured using 2 items asking about trouble focusing and distraction in the past 3 hours, rated on a scale of 1 (never) to 6 (almost always); items are reverse-coded and averaged to form a composite representing momentary attentional control; higher scores indicate greater attentional control.