The aim of the study was to confirm the mediation effects of the task-specific self-efficacy on the relationshipbetween the general self-efficacy and intention and planning considering treatment. The study comprised 265 subjects,of which 165 were post-mastectomy women and 100 patients hospitalized due to acute coronary syndrome (ACS). Thevariables were assessed using the Generalized Self-Efficacy Scale (GSES) and tools developed to examine the contextof treatment. The data were analyzed using the bootstrapping procedure. The results confirmed the indirect effects oftask-specific self-efficacy, both in women making a decision to undergo breast reconstruction, and in patients after ACSformulating intention to change risk behaviours. As smoking was considered to be a moderator in the post-ACS group,the obtained associations were observed only among the patients declaring quitting smoking. In view of the fact that taskspecific self-efficacy is susceptible to context (e.g. it may depend on quitting smoking), it is useful to assess it in order toincrease treatment effectiveness.
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