Transcription of The Transtheoretical Model of Health Behavior Change
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THE S CIENCEOFHEALTHPROMOTIONB ehavior ChangeThe Transtheoretical Model of Health BehaviorChangeJames O. prochaska , Wayne F. VelicerAbstractThe Transtheoretical Model posits that Health Behavior Change involves progress throughsix stages of Change : precontemplation, contemplation, preparation, action, maintenance,and termination. Ten processes of Change have been identified for producing progress alongwith decisional balance, self-efficacy, and temptations. Basic research has generated a ruleof thumb for at-risk populations: 40 % in precontemplation, 40 % in contemplation, and20% in preparation. Across 12 Health behaviors, consistent patterns have been found be-tween the pros and cons of changing and the stages of Change . Applied research has dem-onstrated dramatic improvements in recruitment, retention, and progress using stage-matched interventions and proactive recruitment procedures.
James o. Prochaska, PhD, and Wayne F. Velic~ PhD, are at the Cancer Prevention Research Cent~ University of Rhode Island, Kingston, Rhode Island. Send reprint requests to James o. Prochaska, Cancer Prevention Research Center, 2 Chafee Road, University of Rhode Island, Kingston, RI 02881-0808; JOP@URIACC.URI.EDU.
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