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The Impact Of Sudden Gains And Deteriorations On The Psychotherapy Process, Joanna Mary Drinane

Electronic Theses and Dissertations

Within the field of psychotherapy research, there has been significant evidence to suggest that people change and improve because of treatment (Lambert & Ogles, 2004). One common phenomenon that has been observed when looking more closely at outcome trajectories has been termed sudden gains/deteriorations. These are defined as sudden changes in outcome (either positive or negative) of 25% or more from the pre-change level of symptoms that are in turn sustained over time (Tang & DeRubeis, 1999). Although there are data regarding how people who experience sudden gains end up after treatment, no studies have examined the impact that sudden …