The authors identify, classify, and compare several involvement measur
es used in studies reported in the Journal of Advertising and related
publications, and identify opportunities for future involvement resear
ch. Most published scales pertain to enduring product involvement. Few
studies have addressed enduring involvement with a service or situati
onal involvement with either a product or a service. Most of the invol
vement research in advertising has investigated the effects of situati
onal involvement on other variables. Despite the considerable theoreti
cal work related to the involvement concept, knowledge remains incompl
ete. Additional scale development is advocated as a means for increasi
ng the Knowledge base.