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Founder Pro-Change Behavior Systems, Inc. Progressing through the Stages of Change for Sustainablitity James O. Prochaska, Ph.D. Director and Professor Cancer Prevention Research Center University of Rhode Island
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Stages of Change
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Of the People alive in the world today, 500,000,000 will die of smoking
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Percent of Smokers by Stage Across Three Different Samples SamplePrecont.Cont.Prep.N Rhode Island42.140.317.64,144 4 Worksites41.138.720.14,785 California37.346.716.09,534
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Comparison of SPI Profiles for 6 Countries Laforge, R, Velicer W, Levesque D, Fava, J, Hill, D, Schofield, P, Fan, D, De Vries, H, Shisana, W, & Conner, M. (1998). Measuring support for tobacco control in selected areas of six countries. Tobacco Control: An International Journal, 7, 241-246.
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Stage of Change
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Stage Transitions The pros and cons of changing across stages of change for 48 behaviors Hall, K. L. & Rossi, J. S. (2008). Meta-analytic examination of the strong and weak principles across 48 health behaviors. Preventive Medicine, 46, 266-274.
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PC A 1 S.D. PROS H Strong Principle of Progress: Progression from Precontemplation to Action is a function of approximately one standard deviation increase in the Pros of a healthy behavior change. Prochaska, JO. (1994). Strong and weak principles for progressing from Precontemplation to Action based on twelve problem behaviors. Health Psychology, 13, 47-51.
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Weak Principle of Progress: Progression from Precontemplation to Action is a function of approximately one- half of a standard deviation decrease in the Cons of a healthy behavior change. PC A 0.5 S.D. CONS H Prochaska, JO. (1994). Strong and weak principles for progressing from Precontemplation to Action based on twelve problem behaviors. Health Psychology, 13, 47-51.
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When social controls (including incentives) are used, programs have to help transform social controls into self controls. A. Air Force example with smoking
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