Background. Many merchant education programs entail efforts to increas
e cashiers' requests for minors' age and/or identification (proving th
emselves old enough to purchase cigarettes) as a means of decreasing m
iners' access to tobacco. However, whether such questions are actually
associated with decreased sales to minors has never been investigated
. We present the first investigation of the role of such questions in
sales of tobacco to minors. Methods. Thirty-six miners, representing e
qual numbers of girls, boys, whites, blacks, and Latinos and of 10-, 1
4-, and 16-year-olds, each attempted to purchase cigarettes once in ea
ch of 72 stores, for a total of 2,567 purchase attempts. The frequency
of asking the children their age and/or for identification (ID) was a
nalyzed along with the role of these questions in subsequent sales. Re
sults. The data revealed that requesting age/ID was rare (occurring 17
% of the time) despite the laws in California requiring clerks to do s
o. When age was asked, however, miners were refused cigarettes 95.8% o
f the time, and when ID was requested, they were refused cigarettes 99
.0% of the time. Asking for ID may be more strongly associated with de
creased sales than asking age. For example, for 16-year-olds, asking a
ge decreased sales from 57.2% (when no questions were asked) to 8.5% o
f the time, and asking ID decreased sales to 2.4% of the time. Conclus
ions. These data provide empirical support for the widespread belief t
hat the success of interventions with retailers can be improved by enh
ancing efforts to increase merchants' requests for children's ID. (C)
1996 Academic Press, Inc.