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Internal and external factors that encourage or discourage

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"Interventions to promote habit changes are difficult to implement <strong>and</strong> sustain without broader<br />

social, institutional <strong>or</strong> political intervention." (Ewart 1991 [11])<br />

"The drive toward social comparison <strong>and</strong> group maintenance has been considered an imp<strong>or</strong>tant<br />

determinant of behavi<strong>or</strong>." (O'Keeffe, 1990 [16])<br />

"Self-<strong>or</strong>ganized groups can influence perceived behavi<strong>or</strong>al control by providing the means f<strong>or</strong><br />

behavi<strong>or</strong> change." (O'Keeffe, 1990 [16])<br />

"The peer group is a natural place f<strong>or</strong> social skills training to occur... Social skills training with<br />

children in groups builds competence in perf<strong>or</strong>mance." (Rose, 1987 [18])<br />

"The behavi<strong>or</strong> of teachers, friends, lovers, <strong>or</strong> family members serves as incidental antecedent <strong>and</strong><br />

consequent events. Their behavi<strong>or</strong> may be a cue which signals reinf<strong>or</strong>cing <strong>or</strong> punishing stimuli f<strong>or</strong> an<br />

individual's specific behavi<strong>or</strong>." (Rugg, 1990 [19])<br />

"A socially supp<strong>or</strong>tive family <strong>or</strong> <strong>or</strong>ganization may enable setting members to cope m<strong>or</strong>e<br />

effectively with physical constraints." (Stokols, 1992 [21])<br />

"Supp<strong>or</strong>tive interpersonal relationships can enhance individuals' emotional <strong>and</strong> physical wellbeing<br />

<strong>and</strong> reduce the stressful consequences of negative life events." (Stokols, 1992 [21])<br />

"To the extent <strong>that</strong> <strong>or</strong>ganizations promote chronic conflict among members <strong>or</strong> provide few<br />

resources to resolve such conflicts when they arise, they are m<strong>or</strong>e likely to impair the emotional <strong>and</strong><br />

physical well-being of their members. (Stokols, 1992 [21])<br />

2. Media<br />

"Communications <strong>that</strong> explicitly (instill in people the belief <strong>that</strong> they have the capability to alter<br />

their health habits <strong>and</strong> instruct them on how to do it) increase people's determination to modify habits<br />

detrimental to their health." (B<strong>and</strong>ura, 1990 [1])<br />

"The social diffusion of health practices promoted by mass media campaigns" is influenced by<br />

perceived self-efficacy. (B<strong>and</strong>ura, 1990 [1])<br />

"Health communications should emphasize <strong>that</strong> success requires perseverant eff<strong>or</strong>t" to strengthen<br />

the staying power of self-beliefs. (B<strong>and</strong>ura, 1990 [1])<br />

"Communications phrased in terms of benefits are less effective in altering detrimental habits<br />

than communications phrased in terms of personal losses. Examination of possible mediating mechanisms<br />

shows <strong>that</strong> the m<strong>or</strong>e persuasive messages achieve their effects by raising perceived self-efficacy."<br />

(B<strong>and</strong>ura, 1990 [1])<br />

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