PROACTA: a way to study the tendency to occur (TTO) of patient behaviours

Classical decision theory formulas have been combined with more recent theories from psycho-social origins (such as Rosenstock's health belief model, Fisbein's rational action theory, Bandura's concept of self-efficacy, Triandis' concern for the assessment of habits, etc.). A software, called PROACTA, enables simulations of actual cases. Currently, it is being tested in various backgrounds. It is orientated in order to help conceive intervening strategies, especially in the area of patient education. Examples of a case study are presented.