ABSTRACT
Persons (1989), in a seminal book, highlighted the importance of adopting a case-formulation (sometimes called caseconceptualisation) approach to the practice of CBT. A case formulation is essentially a blueprint, which takes as its starting point a client's presenting problems and puts forward hypotheses about factors that account for these problems and explain how the client unwittingly perpetuates these problems. These factors are mainly cognitive and behavioural, but environmental and interpersonal context factors are also included.
