Student Exercise and Sleep Timing Study - Part 2

Mood

Determine if, compared to a control condition (maintaining usual schedule), shifting exercise from evening to morning improves mood (positive affect, depression, anxiety, anger). This will be measure using the Patient-Reported Outcomes Measurement Information System (PROMIS) short form questionnaires for anger, anxiety, depression, and positive affect. Each subsection has a separate score, with higher scores indicating higher levels of anger (scores range from 5-25), anxiety (scores range from 8-40), depression (scores range from 8-40), or positive affect (scores range from 15-75) for each subsection.

Time frame: 2 weeks

Stress

Determine if, compared to a control condition (maintaining usual schedule), shifting exercise from evening to morning improves stress levels. This will be measured using the Perceived Stress Scale published in the Journal of Health and Social Behavior in 1983. Higher scores indicate higher stress levels with scores ranging from 0 to 56.

Time frame: 2 weeks

Productivity

Determine if, compared to a control condition (maintaining usual schedule), shifting exercise from evening to morning increases productivity. This will be measured using a 5-item questionnaire with a 4-answer scale of poor to excellent (1-4, respectively). The items ask about overall productivity, class attendance, time management, memory, and ability to maintain attention. Higher scores indicate greater productivity with scores ranging from 5 to 20.

Time frame: 2 weeks