1,816
Participants
Start Date
October 31, 2011
Primary Completion Date
July 31, 2016
Study Completion Date
December 31, 2016
Pure self-help Internet CBT for depression
Internet, CBT, Depression
Guided self-help Internet CBT
CBT, Depression, Website intervention, coaching
Stepped-Care Internet CBT condition
Depression CBT, Internet intervention
Kaiser Permanente Center for Health Research, Portland
Oregon Health and Science University
OTHER
Kaiser Permanente
OTHER