Abstract
The prevention and modification of delinquent behaviour is an issue of increasing concern to society, both in Great Britain and the U.S.A. This concern is aggravated by a growing amount of evidence which suggests that the majority of intervention procedures are not successful in preventing further offending by juvenile offenders (Cornish and Clarke, 1975, Hood and Sparks, 1970, Feldman, 1976). This appears to be true of both penal methods such as fines, probation or imprisonment (Hood and Sparks, 1970) and psychotherapeutic approaches (Logan, 1972).