 (see Evaluation of The Communication Opportunity Group scheme (COGS) by Nelson and Burchell (1998) and an Evaluation of COGS by Cooper (2004).Sage has served as the president of Human Communication International, as a member of Sir Michael Rutter's Advisory Committee on Language Research, as a member of the Research Committee of the British Stammering Association, and as an educational advisor to the Royal College of Speech and Language Therapists.She has also served as a trustee of the Association for Speech Impaired Children and of the Independent Panel for Education Advice.