Despite studies finding relatively small differences between computer
and traditional methods of administering objective personality and cog
nitive measures, no similar format equivalence research has been done
for projective personality measures. The present study compares two gr
oups of college students' responses to either a traditional administra
tion or a computer administration of the Rotter Incomplete Sentences B
lank (ISB). No differences were found for subject characteristics of a
ge or gender. The groups receiving different forms of administration d
iffered on the ISB maladjustment score, a global index of psychologica
l difficulties, with the computer administration group exhibiting fewe
r test signs of maladjustment than the traditional administration grou
p. However, differences between the two forms were small and nonsignif
icant after adjusting for attitudes towards computers. The findings su
ggested that computer ISB administration was likely to yield a similar
level of disclosure as the traditional ISB administration when noncli
nical levels of maladjustment are present. Suggestions are made for fu
rther research, including the use of contrasting samples and additiona
l projective instruments. Copyright (C) 1996 Elsevier Science Ltd