Abstract
This paper describes the development of a new measure of attitude towards science for use among secondary school pupils which operationalises the affective attitudinal domain. Item selection, the internal structure and reliability of the scale, content validity and construct validity were established on a sample of 2129 pupils in the third, fourth, fifth and lower sixth years of Protestant and Catholic grammar schools in Northern Ireland. Scale norms demonstrate that males record a more positive attitude towards science than females, and that younger pupils record a more positive attitude towards science than older pupils.