This article describes the initial development of a 45-item self-administered questionnaire/instrument for the evaluation of guidance services in schools. Three domains are tapped in the questionnaire: namely, programme and curriculum, personnel and policies and resources, following the conceptual framework developed by Lung and Luk (1998). The sample for the present study comprises 39 in-service secondary school teachers taking certificate guidance and counselling courses in Hong Kong. This instrument describes the unique characteristics of guidance and counselling services, depicting a blend of international trends as well as local particularities in Hong Kong schools, regardless of school backgrounds. Copyright © 2003 Sage Publications.