Mindfulness Training and Respiration Biosignal Feedback - Study 1

User satisfaction with the mindfulness meditation app, Equa as assessed by the Systems User Satisfaction scale at post treatment

Participants respond to the usability of a system by indicating the degree to which they agree or disagree with 10 statements using a 5-point scale that ranges from 1 \"Strongly Disagree\" to 5 \"Strongly Agree\" to 4 always.

Time frame: End of treatment session at up to week 4

User satisfaction with the mindfulness meditation app, Equa as assessed by the Mobile App Rating Scale at post treatment

The rating scale assesses app quality on four dimensions - Engagement, Functionality, Aesthetics, Information, and Subjective Quality. We are assessing Engagement and Subjective Quality only. All items are rated on a 5-point scale from "1.Inadequate" to "5.Excellent". Ratings for individual items are averaged within the applicable dimension.

Time frame: At the end of treatment session at up to week 4

Change from Baseline in total anxiety as assessed by the General Anxiety Disorder, 7-item questionnaire at post treatment

Participants respond to a questionnaire asking about how often they have been bothered by any of the listed problems over the last 2 weeks. Zero is equivalent to not at all and 3 indicates nearly every day

Time frame: From enrollment to the end of treatment at up to week 4

Change from Baseline in total depression as assessed by the Patient Health Questionnaire-9 at post treatment

Participants respond to a questionnaire asking about how often they have been bothered by any of the listed problems over the last 2 weeks. Zero is equivalent to not at all and 3 indicates nearly every day

Time frame: From enrollment to the end of treatment at up to week 4

Change from Baseline in total affect as assessed by the Positive and Negative Affect Scale at post treatment

Participants respond to a questionnaire asking to indicate the extent they have felt the following ways over the past 2 weeks. One is equivalent to not at all and five indicates extremely.

Time frame: from enrollment to the end of treatment at up to week 4

Change from Baseline in mean state mindfulness as assessed by the Mindful Attention Awareness Scale - state at post treatment

Participants respond to a questionnaire asking to what degree they were having each experience described over the past 2 weeks. Zero is equivalent to not at all and six indicates very much.

Time frame: From enrollment to the end of treatment at up to week 4

Change from Baseline in total perceived stress as assessed by the Perceived Stress Scale at post treatment

Participants respond to a questionnaire asking about their feelings and thoughts over the past 2 weeks. Zero is equivalent to never and four indicates very often.

Time frame: From enrollment to the end of treatment at up to week 4

Change from Baseline in total social well-being as assessed by the Satisfaction with Life Scale at post treatment

Participants indicate how much they agree or disagree with each of the 5 items using a 7-point scale that ranges from 7 strongly agree to 1 strongly disagree. A score of 5-9 indicates extreme dissatisfaction and a score of 31-35 indicates extreme satisfaction.

Time frame: From enrollment to the end of treatment at up to week 4

Change from Baseline in total loneliness as assessed by the UCLA Loneliness scale at post treatment

Participants indicate how often they feel the way described in each of the 20 statements using a 4-point scale that ranges from 1never to 4 always. The scoring is continuous.

Time frame: From enrollment to the end of treatment at up to week 4