Two studies were performed to assess the validity of a World-Wide Web (WWW)
measure of self-monitoring. In Study 1, Usenet Newsgroups likely to be rea
d by high and low self-monitors were identified and a comparison was made o
f the extent to which contributors engaged in a form of self-presentation (
use of handles or screen names) likely to be influenced by self-monitoring
tendencies. Handles were used significantly more frequently in the high sel
f-monitoring Newsgroups, supporting the distinction made. In Study 2, parti
cipants recruited through these sets of Newsgroups completed the WWW-mediat
ed test. Those from the high self-monitoring groups scored significantly hi
gher. Self-reports of self-monitoring behavior also reflected scores on the
scale. The results are interpreted as demonstrating the construct validity
of the instrument used and the viability of criterion-group-oriented metho
ds in Internet-mediated research.