Individual differences in willingness to become an organ donor: A decision tree approach to reasoned action

The promotion of organ donation requires a better understanding of the attributes associated with willingness to donate. This entails revealing complex interactions among personality attributes related to intentions and behaviors. In the present study, survey data from young adults (N = 367) were analyzed using decision tree algorithms to identify these interactions within the reasoned action framework. Within this structure, donation attitudes, intentions, and behaviors were examined in relation to individual differences such as conscientiousness, empathy, time orientation, religiosity, and interpersonal trust.

► Decision trees helped to identify new correlates of organ donation decisions.
► Decision trees helped to identify complex interactions among relevant attributes.
► Demonstrated a novel way to integrate personality into reasoned-action framework.
► Provided a more comprehensive profile of the likely donors.