For the purposes of coding, each 2-hr session was divided into three segments of approximately 40 min each. The first 40-min segment from the first session of each cohort was excluded from coding because it focused mostly on personal introductions and program overview. Coders were three clinical psychology graduate students who had at least 2 years of ACT training and clinical experience. Coding training consisted of approximately 30 hr of didactic instruction, discussion, and practice with coding segments from the pilot project.
