The SF36 (Short Form 36: MOS, USA) has a mental health component score as well as a physical health component score and is a useful tool for making comparisons against national figures, especially in pre and post intervention situations. I can give you some more details on this if you are interested. Ms Sophia Bird Powys Health Promotion Officer (Research and Evaluation) tel: 01874-711661 X4678 fax: 01874-711618 >>> "Graham Henry Lyons" <[log in to unmask]> 09/02 12:35 pm >>> Me again, on behalf of a colleague interested in measurement of change in mental health status following an intervention. What are the most effective evaluative methods ? Any key references ? Thankyou Graham Lyons [log in to unmask] %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%