This article presents a critique of the concept of cognitive distortion as it has been developed within the domain of sex-offender treatment programme theory and practice. Drawing upon a discursive psychology perspective, it is argued that cognitive distortions should not be considered
as mental entities but as social practices. This argument is illustrated by closely examining how offenders' accounts of their offences during sex offender treatment sessions were organized. Recordings and transcriptions of treatment group sessions were analysed for the occurrence of regular
patterns of talk and interaction. This analysis focused on how minimization was achieved through well documented rhetorical and conversational devices (conversational repair, narrative contrast devices). An orientation to cognitive distortions as a resource was also illustrated through examining
its use by group members to admonish a focus offender and through a narrative reflexivity device. These findings suggest that the notion of cognitive distortion and its role in treatment settings should be reconsidered. Furthermore, it is suggested that a discursive psychology perspective
can also make a highly relevant contribution to the evaluation of treatment group processes and that further research is needed in order to examine in detail the way that treatment groups are socially organized.