The Transtheoretical Model (TTM) construes behavior change as a process that unfolds over time and involves progress through a series of stages. At each stage of change, TTM applies different processes and principles of change from across leading theories of counseling and psychotherapy, hence the name transtheoretical. Using evidence-based algorithms, counseling can be tailored to the needs of each individual with typically just three sessions from 20 to 45 minutes in length.

Historical Context

TTM was developed in the late 1970s by James O. Prochaska, director of the Cancer Prevention Research Center at the University of Rhode Island, and Carlo C. DiClemente, currently professor of clinical psychology at the University of Maryland, Baltimore County. At the time, the therapy field was fragmenting into more than 300 therapies, ...

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