Three years ago, Greenwald, McGhee, and Schwartz (1998) presented a new met
hod to measure differential evaluative association of two target concepts:
the Implicit Association Test (IAT). It has been asserted that the IAT allo
ws for the assessment of implicit attitudes by comparing response times in
two combined discrimination tasks. Although the distribution and employment
of this method has been quite successful, the processes underlying IAT-eff
ects, as well as; the psychometric properties of specific IAT-variants, hav
e received relatively little attention up to now. The articles included in
the present special issue especially focus on these aspects.