A preliminary scope of the literature in the HAIs field re theory-based interventions shows a mixture of theories/frameworks used to inform interventions in the HAIs context. Most of them are psychology-based including the theory of planned behaviour, the health belief model, the PRECEDE model etc. .

However, it seems that there is no standard pattern of both what theory and which constructs/factors of these theories scientists should focus on when exploring healthcare staff's behaviour within the HAIs context. Is it, for example self-efficacy, intentions, perceived behavioural control etc. and if there is a mixture of relevant constructs how can someone better justify his decision to include the X construct and not the Y one when developing such an intervention?

I hope this makes some sense.