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An Overview of Prochaska and DiClemente’s Stages of Change Model

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1 An Overview of Prochaska and DiClemente’s Stages of Change Model
Developed by Catherine Segan for the Victorian Smoking and Health Program September, 1999 The Victorian Smoking and Health Program is a joint initiative of the Anti-Cancer Council of Victoria, the Department of Human Services, the National Heart Foundation and the Victorian Health Promotion Foundation.  The Quit logo is a registered trademark of the Anti-Cancer Council of Victoria.

2 Key Features of the Stages of Change Model
Deals with intentional behaviour change Views change as a process rather than an event The change process is characterised by a series of stages of change In attempting to change a behaviour a person typically cycles through these stages of change

3 What are the Stages of Change?
The stages describe a person’s motivational readiness or progress towards modifying the problem behaviour Precontemplation: not considering quitting in the next 6 months Contemplation: seriously considering quitting in the next 6 months

4 What are the Stages of Change? (Cont’d)
Preparation: planning to quit in the next days Action: the first 6 months of staying quit Maintenance: quit for more than 6 months Relapse: transition to an earlier stage

5 Figure 1: Prochaska and DiClemente’s Wheel of Change
Termination Maintenance Relapse Action Contemplation Preparation Precontemplation Figure 1: Prochaska and DiClemente’s Wheel of Change

6 Figure 2. Spiral of change
From Prochaska, DiClemente & Norcross, 1992, p1104

7 What helps people move forward through the Stages of Change?
Processes of Change Decisional balance Self-efficacy

8 10 Processes of Change Coping activities or strategies used by people in their attempts to change Each change process is a broad category of coping activities which encompasses multiple techniques, methods and interventions

9 Two Main Types of Change Processes
Cognitive change processes Involve changes in the way people think and feel about their smoking Behavioural change processes Involve people making changes to their smoking behaviour

10 5 Cognitive Processes Consciousness raising Increasing information about yourself and smoking e.g. - thinking about health effects of smoking - a doctor asking whether you smoke - thinking about how you’re running out of breath - reading the Quit book - watching the Quit TV ads

11 5 Cognitive Processes Dramatic relief Experiencing strong emotional reactions to events associated with smoking e.g. - deciding to do something about your smoking after your grand mother is diagnosed with lung cancer - seeing the effect of blowing smoke through a white handkerchief

12 5 Cognitive Processes (Cont’d)
Environmental reevaluation Becoming aware of the impact of the problem behaviour on others e.g. - thinking about the effects of smoking around the kids - noticing cigarette butts on the street

13 5 Cognitive Processes (Cont’d)
Self-reevaluation Affective and cognitive reexperiencing of one’s self and problems e.g. - thinking that you’re no longer happy being a smoker - imagining yourself as a non-smoker

14 5 Cognitive Processes (Cont’d)
Social liberation Noticing and using social conditions that support personal changes e.g. - noticing the non-smoking areas around you - joining a quit smoking course

15 5 Behavioural Processes
Self-liberation Belief in your ability to change and commitment to act on that belief e.g. - telling yourself that you can quit smoking - setting a quit day - telling others you’re quitting

16 5 Behavioural Processes (Cont’d)
Helping relationships Trusting others and accepting their support in quitting e.g. - asking a friend who used to smoke for help - calling the Quitline

17 5 Behavioural Processes (Cont’d)
Counter conditioning Replacing smoking with more positive behaviours and experiences e.g. - “Do something else”

18 5 Behavioural Processes (Cont’d)
Reinforcement management Rewards for staying quit e.g. - the family showering you with praise - buying yourself a magazine, CD, flowers - telling yourself how wonderful you are

19 5 Behavioural Processes (Cont’d)
Stimulus control Avoiding or countering stimuli that elicit the problem behaviour e.g. - cleaning up ashtrays before your quit day - not going to the pub the day after you quit - putting up no smoking signs

20 Relationship between Processes and Stages of Change
Cognitive change processes help people to move through the early stages of change i.e. from not thinking about quitting to deciding to quit Behavioural change processes help people to move through the later stages of change i.e. from making a quit attempt to staying quit

21 Decisional Balance Decisional balance is the importance a person gives to the perceived advantages (pros) and disadvantages (cons) of smoking, and of quitting An individual’s motivation to change is affected by his/her decisional balance

22 Decisional Balance (Cont’d)
Decisional balance changes across the stages of change Use of cognitive change processes can help tip the decisional balance in favour of quitting

23 Figure 3. Decisional Balance Across the Stages of Change
From Prochaska, Velicer, Rossi et al pg.43

24 Self-efficacy Self-efficacy is a person’s confidence in his/her ability to quit, and to resist temptations Confidence to resist temptations to smoke varies across the stages of change, being lowest in Precontemplation and highest in Maintenance Self-efficacy is a strong predictor of success in the Action and Maintenance stages

25 How is the Model Useful? Provides a framework for understanding the process of how people change Recognises that people in different stages of change need different types of interventions to help them progress. Quit Victoria has developed goals and strategies for counselling clients at each of the stages of change

26 References Prochaska, J.O., DiClemente, C.C. & Norcross, J.C. (1992). In search of how people change: Applications to addictive behaviors. American Psychologist, 47(9), Prochaska, J.O., Velicer, W.F., Rossi, J.S., Goldstein, M.G., Marcus, B.H., Rakowski, W., Fiore, C., Harlow, L.L., Redding, C.A., Rosenbloom, D., & Rossi, S.R. (1994). Stages of change and decisional balance for twelve problem behaviors. Health Psychology, 13(1),


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