Randomization
Randomization will be carried out at the Robertson Centre for Biostatistics at the University of Glasgow, part of the Glasgow Clinical Trials Unit, by staff not in direct contact with participants, and who will not carry out the final analysis. Randomization will occur each time sufficient participants have been recruited to fill two classes (up to 16 participants per class). Overall, we anticipate needing to run five immediate access (IA) classes and 5 DAC classes. Randomization will take into account timing of classes (availability to attend evening or daytime classes), location of classes (that is, classes in either Edinburgh or Glasgow), and severity of depression as measured by the PHQ9 (score of less than or equal to 9 and greater than or equal to 10) at the eligibility stage. Participants will be assigned to either IA or to DAC. Participants will then be given the date, time and place (IA or DAC) where their allocated classes will be held.