2.3.2. Relaxation intervention
Participants in this group underwent a guided, 10-min relaxation intervention (also listened to on cassette tape), which was based on passive, progressive muscle relaxation (Feldman et al.,
2010). This active comparison intervention was chosen in order to determine if the mindfulness intervention provided skills above and beyond just increased relaxation. See Vinci et al. (2014) for both more detail regarding this intervention and a written transcript of the instructions provided to participants.