Intervention Group who uses OWAVES App for 7 weeks

Students use the Owaves app for 7 weeks and psychological measures are obatined pre and post to determine the effectiveness of the App

Subjective Happiness Scale (SHS) Trait questionnaire. The SHS is a 4-item scale of global subjective happiness. It is scored on a 7-point Likert scale where 1 = less happy to 7 = more happy. Total scores range from 4 to 28 where higher scores indicate greater subjective happiness.

The Barkley Adult ADHD Rating Scale is a self-report questionnaire with 18-items which rates the frequency of ADHD symptoms and behaviors. Each item is scored on a 4-point scale ranging from 1 = never or rarely, to 4 = very often. A lower score indicates less severe ADHD symptoms and behaviors.

Subjective Vitality Scale (SVS) is a 6 - item self-report questionnaire to measure the subjective vitality of a participant. It is scored on a 7-point Likert scale where 1 = completely disagree to 7 = completely agree. Higher scores indicates higher level of subjective vitality.

The Five Facet Mindfulness Questionnaire (FFMQ) short form is a 24-item questionnaire that measures mindfulness in participants. Items are scored on a 5-point Likert-type scale ranging from 1 = never/very rarely true to 5 = very often/always true. Higher scores indicate greater levels of mindfulness.

State measures will be obtained within three days of the trait assessments (also in weeks 1/2 and 8/9) using the Daily Reconstruction Method (DRM), in which participants are asked to reconstruct their previous day into episodes and retrospectively report on state variables during each episode (see Raynes & Dobkins, 2025). The state measures will match the trait measures and ask about:

• Happiness (State)
• Focus (State)
• Energy (State)
• Mindfulness (State)