This study contributes to an understanding of how coherence can be assigned or constructed by participants in authentic multiparty conversational interaction. Coherence is analysed as a type of organisation relevant for the making of meaning in situated interaction, but also in retrospect from a third party's (or analyst's) perspective; it is both constructed and reconstructed. Important questions are: what makes multiparty talk hold together, what do a number of participants in conversation (have to) do in order to sustain coherence, and in what senses can multiparty conversations be argued to be coherent? A notion of episode is (re)introduced as a unit of natural social interaction, manifest at a structurally intermediate, or a global. level of conversation. The use of episode implies that coherence, a pragmatic phenomenon, steadily encompasses text, i.e. talk, context(s) and actions, and sense-making practices invoking contexts during the progression of interaction. This reflects the reciprocal relations between länguage, social interaction, and cognition. Also, a coding method of coherence has been developed, Topical Episode Analysis (abbreviated as TEA). The thesis explores the concept of episode and its place among units of interaction, and describes the episode structure and coherence-making in some specific activity types. The empirical material used, 24 multiparty conversations making up a total of 1500 episodes, consists of dinner conversations among peers, multi-generational family gatherings (involving aphasics), radio talk shows, and conversations recorded at a centre aimed for elderly people (with symptoms of dementia). In all conversations, conversing is a main activity. Both qualitative and quantitative analyses have been carried out. Results include the following points: (i) coherence in multiparty conversation can be regarded as a co-construction; (ii) coherence is accomplished through the invoking of contexts (cotext, situation, and background knowledge), implying that coherence is an attribute of activities in context and not only 'text'; (iii) coherence-making is the unmarked case in authentic conversation and incoherence or non-coherence appear to be theoretical constructs; (iv) coherence patterns are activityspecific; (v) coherence is multilayered, consisting of one local and several global levels; (vi) coherence is constructed through a division of communicative labour, suggesting that also people with communicative impairments contribute to coherence-making.

This paper examines the function of narrative discourse in television talk shows. Basing our analysis on five episodes of the Swedish talk show Skavlan, we illustrate how narratives are initiated and elaborated by the participants of the show. The analysis shows that the institutional roles are challanged and that the roles vary between the host ant the guests. The analysis also shows that when guests introduce and elaborate stories they use the same discursive actions and resources as the host. When participants enter an actvie role in their storytelling the hos takes a more restrained role in which he lets the the conversation evolve spontaneously. The analysis identifies yet another participant role which was not included in the studies of Ochs & Taylor and Thornborrow. The role appears when the host uses indirect form of address to both the studio audience and the overhearing audience. This role is relevant in the study of broadcast talk because of the very nature of television.