Measures
SECONDARY
Key primary (hiking frequency) and secondary outcome (stress, sleep duration) measures were consistent with Study 1, as were measurement of demographics and intervention implementation. Each Study 2 measure described below was collected at baseline, midpoint, and post-intervention unless specified. Any small changes to online surveys between Study 1 and 2 are described.Primary outcome: Frequency of hiking/nature walks. An adapted version of the Pleasant Activities List [Secondary outcomes: Stress and sleep. The same items from Study 1 were used to assess stress and sleep duration. In addition, another question from the Pittsburgh Sleep Quality Index [Other variables. Participants completed questions about whether anyone close to them tested positive for COVID-19 and ways the pandemic impacted them over the past month [