Applying an Extended Model of the Theory of Planned Behaviour to Breast Self-examination

Few studies have examined the predictors of breast self-examination in younger women, where it is the primary method for the early detection of breast cancer. Female college students (N = 253, aged 17 to 50 years) completed items related to breast self-examination assessing theory of planned behaviour (TPB) constructs (intentions, attitude, subjective norm, perceived behavioural control), social influence variables of self-identity and group norm, and demographic characteristics. One month later, breast self-examination behaviour was assessed. Results supported this application of the TPB model and highlight the importance of group norms for strategies to increase breast self-examination in younger women.

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