Hans Eysenck and the Individual Differences Paradigm in the clinical setting

This review examines the application and extension of Hans Eysenck's Individual Differences Paradigm (IDP) to clinical psychology and, in particular, the utility of establishing a dimensional basis for experimental and clinical categorisation. Adopting a dimensional approach allows specifying the process and context of psychopathology. It also establishes a continuum for quantifying the emergence of psychopathology and may inspire a multi-dimensional approach to the clinical phenomenon. The IDP is also person-centred and can chart intrapersonal as well as inter-personal dimensions revealing idiosyncratic triggers and trajectories to a problem through monitoring person × situation interactions which target strengths as well as dysfunctions in a person's repertoire. Examples from research in dependence, tic disorder and obsessions illustrate the approach.