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How behaviour influences behaviour?

How behaviour influences behaviour?. Paulo D. Vitória, Portugal ( pvitoria@fcsaude.ubi.pt ). Lisbon, 6th May 2010. Initiation & Cessation. What links initiation and cessation? Both are learning processes Both demand the want and the effort of the individual

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How behaviour influences behaviour?

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  1. How behaviour influences behaviour? Paulo D. Vitória, Portugal (pvitoria@fcsaude.ubi.pt) Lisbon, 6th May 2010

  2. Initiation & Cessation • What links initiation and cessation? • Both are learning processes • Both demand the want and the effort of the individual • Both demand social influence and support • Lets focus first on initiation ===>

  3. ASE Model(De Vries et al., 1998; De Vries & Mudde, 1998) Theories of Reasoned Action (Ajzen & Fishbein, 1980 Fishbein & Ajzen, 1975) and Planned Behaviour (Ajzen, 1991, 1988); Aprendizagem Social (Bandura, 1977, 1986); Motivational Factors Attitude External Factors Social Influence Intention Behaviour Self-efficacy 3

  4. Model (of Social Influence) Social Influence: Processes: [(SN+DN+(DP)] XReferents[(Parents+Peers (+siblings)] Motivational Factors Social Influence SN Parents SN Peers DN Parents DN Peers Intention Behaviour External Factors Attitude SN=Subjective Norm DN=Descriptive norm (DP=Direct pressure) Self-efficacy 4

  5. Results- Social Influence – Intention – Behaviour T1 T2 T3 0,30 SN Pa SN Pa 0,24 0,18 0,23 SN Pe SN Pe R2 (Intenção T1) = 0,45 R2 (Intenção T2) = 0,65 R2 (Comportamento T2) = 0,67 R2 (Comportamento T3) = 0,76 0,89 DN Pa DN Pa 0,22 0,12 0,35 0,80 DN Pe DN Pe 0,14 0,20 .35 0,42 0,87 Bh T2 Intention T2 Intention T1 Bh. T3 -0,35 -0,27 0,20 Attitude (agaist) Attitude (agaist) 0,32 Pa – Parents Pe - Peers SN – Subjective Norms DN – Descriptive Norms —— Significative effects ------ Non-significative effects -0,30 -0,22 -0,23 -0,26 Self- efficacy (refusal) 0,21 Self- efficacy (refusal) -0,21 χ2(670)=1113,28, p<.000; RMSEA=.034; ECVI=2.45; AIC=1413.28; NNFI=.98; CFI=.98; SRMR=.070; AGFI=.78

  6. Conclusions (initiation) • Descriptive norms have a direct effect on behaviour • Parents and Peers have a direct effect on behaviour through descriptive norms • Self-efficacy mediates effects on behaviour • Past behaviour have a strong effect on present behaviour 6

  7. Cessation • Strategies: • Descriptive norms - reverse way (to see others quit) • Self-efficacy - reverse way (to see how others quit) • Past behaviour influences present behaviour (let’s try to stop / to quit) • Trying is an important step to stop and to quit • (Difference between stop and quit) 7

  8. Cessation • Programs implemented in micro-systems • Workplaces • Small communities manly through pharmacies • (Smoke Free Families) 8

  9. Workplace Program Evaluation • Individual level • 155 (38%) smokers (N=408) • 54 (35%) participated in information sessions • 64 (41%) participated in individual counselling • 38 (25%) participated in stop smoking program • 22 in continuous abstinence after 6 months (14% of the total smokers; 58% of total participants) • Organizational level • Prevalence of smokers dropped from 38% to 30% in 1 year

  10. How behaviour influences behaviour? Paulo D. Vitória, Portugal (pvitoria@fcsaude.ubi.pt) Lisbon, 6th May 2010

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