Digital Rewards and Retention in a M-health App

The numbers of participants that get to finish the entire intervention

Score on how engaged the users feel while participating in the intervention - how satisfied and how much they value each intervention module.

Minimum value = 1 Maximum value = 5 A higher score means a better outcome (i.e., a higher user engagement).

The users will be assessed to see if the intervention decreases depression symptoms.

Minimum value = 0 Maximum value = 21 (raw score); please note that scores are usually doubled in order to maintain consistency with the DASS-42, which would result in a maximum of 42.

Higher scores on this subscale are associated with a worse outcome (i.e. depression symptoms), and a total score can be compounded across all 3 subscales, after doubling their raw scores. This total score is a general psychological distress score.

The users will be assessed to see if the intervention decreases anxiety symptoms.

Minimum value = 0 Maximum value = 21(raw score); please note that scores are usually doubled in order to maintain consistency with the DASS-42, which would result in a maximum of 42.

Higher scores on this subscale are associated with a worse outcome (i.e. anxiety symptoms), and a total score can be compounded across all 3 subscales, after doubling their raw scores. This total score is a general psychological distress score.

The users will be assessed to see if the intervention decreases stress symptoms.

Minimum value = 0 Maximum value = 21 (raw score); please note that scores are usually doubled in order to maintain consistency with the DASS-42, which would result in a maximum of 42.

Higher scores on this subscale are associated with a worse outcome (i.e. stress symptoms), and a total score can be compounded across all 3 subscales, after doubling their raw scores. This total score is a general psychological distress score.

This is a DSM-5-TR screener for symptoms, to provide additional information beyond the other secondary measures.

Minimum score = 0 Maximum score = 8 (depression, mania, somatic symptoms, psychosis, repetitive thoughts and behaviors, personality functioning); 4 (anger, suicidal ideation, sleep problems, memory, dissociation); 12 (anxiety, substance use).

A rating of mild (i.e., 2) or greater on any item within a domain (except for substance use, suicidal ideation, and psychosis) may serve as a guide for additional inquiry and follow up to determine if a more detailed assessment for that domain is necessary. For substance use, suicidal ideation, and psychosis, a rating of slight (i.e., 1) or greater on any item within the domain may serve as a guide for additional inquiry and follow-up to determine if a more detailed assessment is needed. A greater score is associated with a worse outcome.

This is a transdiagnostic mental health factor that describes an individual's distress and ability to negatively perceive uncertainty as a whole.

Minimum score = 12 Maximum score = 60 A greater score is associated with a worse outcome (i.e., more intense intolerance of uncertainty)

This is a transdiagnostic factor that describes a person's management and control of emotional states.

Minimum score = 16 Maximum score = 80 A greater score is associated with a worse outcome (i.e., more difficulty in reglating emotions)

This is a transdiagnostic factor that describes a person's tendency to continually focus on negative emotions, experiences and thoughts.

Minimum score = 10 Maximum score = 40 A higher score is associated with a worse outcome (i.e., more intense ruminations)

This is a transdiagnostic contruct that describes thoughts that occur spontaneously, triggered either by external or internal states of events.

Minimum score = 8 Maximum score = 40 A higher score is associated with a worse outcome (i.e., greater frequency of negative automatic thoughts)

This is a transdiagnostic construct that measures how much people get entangled and immersed in their thoughts and beliefs.

Minimum score = 7 Maximum score = 49 A higher score is associated with a worse outcome (i.e., a stronger tendency towards cognitive fusion, becoming more entangled with one's own internal experiences and thoughts)