Aim
This study examined the interaction among cognitive fusion, mindfulness and committed action on the self‐care behaviour in person with heart failure as guided by the acceptance and commitment therapy model.
Design
An exploratory cross‐sectional design was used.
Method
Participants with heart failure from in‐patients setting (
N
= 165) were recruited from two major regional hospitals. Data were collected using self‐report questionnaires of the study variables and demographic characteristics. Data were analysed using Hayes SPSS process macros.
Results
Based on the acceptance and commitment therapy model propositions, all main and interaction effects, except for cognitive fusion, were significant. The current study showed that the main effect of the study variables on self‐care behaviour was insufficient and adding complex interactions between these variables improved the model fit, as it was suggested by the acceptance and commitment therapy model.