Document Type : Original Article


1 Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran, Social Determinants of Health Research Center, Department of Health Education and Health Promotion, Faculty of Health, Birjand University of Medical Sciences, Birjand, Iran

2 Social Determinants of Health Research Center, Department of Health Education and Health Promotion, Faculty of Health, Birjand University of Medical Sciences, Birjand, Iran

3 Social Determinants of Health Research Center, Department of Epidemiology and Biostatistics, Faculty of Health, Birjand University of Medical Sciences, Birjand, Iran

4 PhD Student in Clinical Psychology, International Organization siti,Tehran, Iran


BACKGROUND: Social vitality is one of the most important social indicators to develop a sense
of public satisfaction. The aim of this study was to investigate the effect of educational intervention
based on theory of planned behavior (TPB) and self‑regulatory strategies on the social vitality of
women employee.
MATERIALS AND METHODS: In this randomized controlled field trial study, 66 women employees
of Birjand University of Medical Sciences (Iran) were selected including intervention (n = 31)
and control (n = 35). Data were collected by standard Oxford Happiness Questionnaire and a
researcher‑made questionnaire based on TPB which its the validity and reliability were confirmed.
The educational intervention consisted of 5 sessions based on the constructs of the TPB and
self‑regulatory strategies which were to the interventional group. Data analysis was performed using
the Chi‑square, Fisher’s exact test, independent t‑test, repeated measures ANOVA, and Bonferroni
post hoc test at a significance level of <0.05.
RESULTS: The mean age of women in the intervention and control group was 37.1 ± 9.3 and
36.2 ± 7.6 years (P = 0.67). Model constructs and happiness scores were homogeneous (P > 0.05)
before the intervention, in two group of study, but after attitude (P = 0.016), subjective norm (P = 0.029),
perceived behavior control (P = 0.01), intention (P = 0.006), and happiness score (P < 0.001) had
a significant increase in the intervention group. In the control group, only a significant difference
occurred over time in the happiness rate (P = 0.031).
CONCLUSIONS: The results of the present study showed the effectiveness of educational intervention
on the social vitality of women employees. Therefore, TPB is recommended to use in interventions
to promote social vitality.


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