A field experiment studied the effect of extended contact through peer mode
lling for tolerance promotion among 1480 Finnish students (ages 13-15) in t
hree pairs of middle schools that were matched on the proportion of foreign
students (ranging from 3 per cent to 19 per cent) and randomised to contro
l or experimental condition. In the experimental schools, printed stories o
f ingroup members engaged in close friendship with members of outgroups wer
e presented in two sessions as examples of successful intergroup contact. I
n order to avoid subtyping, i.e. to ensure both inclusion of the ingroup me
mber in the self and generalisation from the outgroup friend to the whole o
utgroup, the typicality of both the ingroup exemplar and the outgroup frien
d was enhanced. Intergroup attitudes were measured before and after the exp
erimental intervention. A scale score measuring intergroup tolerance showed
stability or favourable changes in experimental schools, while attitudes w
orsened or stayed the same in the cona ol schools. The experimental effect
was significant in four statistical tests (p < 0.001 to p < 0.05). The resu
lts show that tolerance can be improved or maintained by extended contact,
i.e. peer modelling of positive intergroup contacts. Copyright (C) 1999 Joh
n Wiley & Sons, Ltd.