Group training for parents of mentally retarded children: a review and methodological analysis of behavioural studies.

Behavioural group training studies with parents of mentally retarded children were reviewed, with a special emphasis on methodology. While all studies reported favourable training outcome, the lack of certain methodological controls demands that the results of these studies be interpreted with caution. Several methodological refinements are proposed in this paper and it is suggested that the group training modality offers a more economical and practical approach than individual parent training.