The Marketing Scales website is a gold mine of information. It is the only source that helps me understand the psychometric quality of the instruments used in past research. I recommend that researchers bookmark this site . . . they will be back!
Materialism (Adolescent)
The degree to which a person believes that happiness is derived from buying and owning things is measured in this scale with ten, four point items. The scale is intended for use with teens or even pre-teens and was called the Youth Materialism Scale by its developers (Goldberg et al. 2003)