It is suggested that previous research examining children's social categori
zation has relied on techniques which call upon controlled cognitive proces
ses, chat is, processes under voluntary control. As such, this research may
say little about children's spontaneous categorization of social informati
on. The present study introduces an unobtrusive measure of categorization w
hich enables examination of automatic processing with respect to gender cat
egorization - the 'who said what!' technique (Taylor, Fiske, Etcoff, & Rude
rman, 1978). A sample of 84 children aged between 7 and 12 years were prese
nted with four photographs, two of boys and two of girls, together with 16
statements attributed to each of the children (i.e. four statements to each
child). Subsequently, 16 statement cards each had to be assigned Eo a part
icular photograph to indicate 'who said what!' Children made significantly
more within-gender errors than between-gender errors, indicating that they
had spontaneously assimilated social information to gender-based categories
.