This chapter focuses on a confrontation of two crucial key elements from both theories, namely the model of the multivoiced self characterized by moving I-positions and the central phenomenological-dialectical personality model (Phe-Di P model). In order to facilitate dialogical processes, positions were approached as voiced positions, able to tell their stories and implied meaning units. Three kinds of (imaginal) interchange can be distinguished: internal-external, internal-internal and external-external. The chapter presents a succinct analysis of the Phe-Di P model with systematic references to Hermans model of moving I-positions. The dialogical self theory (DST) supports a much broader and richer inter- and intrapersonal activity than what a client expresses through the self-confrontation method (SCM), even in combination with a personal position repertoire (PPR) investigation. In psychodrama, the protagonist can really meet the antagonist. This encounter intensifies and surpasses the imaginary self-reflective dimension.

Dialogical self theory (DST) possesses high face validity and connects with personal experience of an internal dialogue and the tensions of indecision. This chapter argues that a methodology is needed which will enable an analysis of the relation between the social and the psychological. It examines how perspectives within the social world become perspectives within the dialogical self. The chapter focuses on three distinctive approaches: the self-confrontation, the personal-position repertoire and the use of bi-plots to map internal and external I-positions. It illustrates the benefits of these methodologies in enabling us to address particular questions but also to highlight that existing methodologies do not enable us to examine the relation between the voices within the dialogical self and the actual perspectives of significant others in the social environment. The interpersonal perception method (IPM) examines the relation between what people think other people think and what those other people actually think.