Effective behaviour change is based on understanding the reasons for difficult behaviour. However, current functional analytic technology is often limited in its effectiveness in the clinical setting because the focus is on labelling and classifying behavioural outcomes rather than conducting a detailed analysis of the manner in which these outcomes assist the client to operate in the environment. The effectiveness of existing functional analytic techniques might be enhanced by moving the focus of the investigation from identifying the consequent variables that impact on behaviour to systematically exploring client–environment interactions as well as the manner in which the client experiences the consequences of his/her actions. One potential method (Valued Outcomes Analysis) that provides a framework for the systematic investigation of the effects of ‘inner skin’ factors on the incidence of behavioural difficulties is described here.