Hayes, S. C., & Follette, W. C. (1992). Can functional analysis provide a substitute for syndromal classification? Behavioral Assessment, 14, 345-365.
Functional analysis has failed to progress as a system of case formulation and treatment guidance. The present article argues that this is primarily due to the lack of replicability of functional analysis as classically conceived, and the resultant difficulty in studyig it scientifically. We offer several alternatives: the development of expert systems, logical functional analytic systems, and functional diagnostic categories. Progress in any of these key areas would provide conceptual and practical support for classic functional analysis as a method of diagnosis and classification.