THE PERCEPTION OF INGROUP AND OUTGROUP HOMOGENEITY - ON THE CONFOUNDING OF GROUP-SIZE, LEVEL OF ABSTRACTNESS AND FRAME OF REFERENCE - A REPLY

In this reply, I criticize Bartsch and Judd's (1993) article on severa l grounds. First, they under-utilize the efforts undertaken in prior w ork to rule out the possibility of an inverse relation between group s ize and perceived group homogeneity as an alternative explanation of t he observed ingroup homogeneity effect. Secondly, Bartsch and Judd's d esign doubles and thus aggravates the confounding problem. By trying t o avoid the target group size confound, they end up with two other con founds involving level of abstractness and frame of reference. Finally , I criticize Bartsch and Judd's methodological advice to avoid within -subjects comparisons of ingroup and outgroup homogeneity in minority- majority contexts. Quite on the contrary, I highlight the social psych ological significance of these comparisons.