Pragma-dialectics, or pragma-dialectical theory, developed by Frans H. van Eemeren and Rob Grootendorst at the University of Amsterdam, is an argumentation theory that is used to analyze and evaluate argumentation in actual practice. Unlike strictly logical approaches, or purely communication approaches, pragma-dialectics was developed to study the entirety of an argumentation as a discourse activity. Thus, the pragma-dialectical theory views argumentation as a complex speech act that occurs as part of natural language activities and has specific communicative goals.
The pragma-dialectical theory
Theoretical justification
In pragma-dialectics, argumentation is viewed as a communicative and interactional discourse phenomenon that is to be studied from a normative as well as a descriptive perspective. The dialectical dimension is inspired by normative insights from "critical rationalism" and formal dialectics, the pragmatic dimension by descriptive insights from speech act theory, Griceanlanguage philosophy and discourse analysis. To allow for the systematic integration of the pragmatic and dialectical dimensions in the study of argumentation, the pragma-dialectical theory uses four meta-theoretical principles as its point of departure: functionalization, socialization, externalization and dialectification. Functionalization is achieved by treating discourse as a purposive act. Socialization is achieved by extending the speech act perspective to the level of interaction. Externalization is achieved by capturing the propositional and interactional commitments created by the speech acts performed. And dialectification is achieved by regimenting the exchange of speech acts to an idealmodel of a critical discussion..
The ideal model of a critical discussion
Based on the meta-theoretical principles described above, the pragma-dialectical theory regards argumentation as ideally being part of a critical discussion. The ideal model of a critical discussion treats argumentative discourse as a discussion in which argumentation is directed at the reasonable resolution of a difference of opinion. The ideal model can serve as a heuristic as well as a critical tool: it respectively constitutes an instrument for the argumentation analyst when deciding about the communicative functions of speech acts and provides a standard for argument evaluation.
Discussion stages
In this ideal model of a critical discussion, four discussion stages are distinguished that the discussion parties have to go through to resolve their difference of opinion: the confrontation stage, opening stage, argumentation stage and concluding stage. In the confrontation stage, the interlocutors establish that they have a difference of opinion. In the opening stage, they decide to resolve this difference of opinion. The interlocutors determine their points of departure: they agree upon the rules of the discussion and establish which propositions they can use in their argumentation. In the argumentation stage, the protagonist defends his/her standpoint by putting forward arguments to counter the antagonist's objections or doubt. In the concluding stage, the discussion parties evaluate to what extent their initial difference of opinion has been resolved and in whose favor. The model also defines the nature and distribution of the speech acts that play a constructive part in the various stages of the resolution process.
Rules for a critical discussion
The ideal model stipulates ten rules that apply to an argumentative discussion. Violations of the discussion rules are said to frustrate the reasonable resolution of the difference of opinion and they are therefore considered as fallacies. The ten rules :
Strategic maneuvering
Recently, the pragma-dialectical theory of argumentation has incorporated insights from rhetoric into the analysis of argumentative discussion. Parties involved in a difference of opinion "maneuver strategically" to simultaneously realize their dialectical and their rhetorical aims. In other words, the parties in an argumentative discussion attempt to be persuasive while observing the critical standards for argumentative discourse. In each of the critical discussion stages there is a rhetorical goal that corresponds with the dialectical goal and interlocutors can make use of three analytical aspects to balance effectiveness and reasonableness: making an opportune selection from the topical potential available at the stage concerned, approaching the audience effectively, and carefully exploiting presentational means. These three aspects correspond with some focal points of rhetorical study – topics, audience adaptation and presentational devices – so that insights acquired in rhetoric are brought to bear in explaining how rhetorical and dialectical considerations play a part in the various ways of strategic maneuvering.
Analyzing and evaluating argumentative discourse
From a pragma-dialectical perspective, in order to get an overview of those aspects in argumentative discourse that are crucial for resolving a difference of opinion, the following analytical operations are carried out: An analytical overview shows the differences of opinion, the distribution of dialectical roles, the expressed and unexpressed premises that make up the argument, and the argumentation structure . The analytical overview can have critical or heuristic functions.
Critical function
Starting from the analytical overview, the evaluation of the quality of the argumentative discourse can be performed. In evaluating the arguments that are put forward in the argumentative discourse, the analyst should check whether the discourse is free from logical and pragmatic inconsistencies, determine whether the propositions put forward are acceptable, evaluate whether the argumentation logically valid, check whether the argumentation schemes are appropriately applied, and check for other fallacies.
Heuristic function
The concept of the analytical overview can also be used in argument production. Since the analytical overview brings together concisely all the information necessary for evaluating an argumentative discussion, it can be used to check whether the argumentation can stand up to criticism. If weaknesses are found, the argumentation can be adjusted or expanded thus it makes a useful guide for the creation of written or oral argumentation.
Application of the pragma-dialectical theory
The pragma-dialectical theory has been applied to understand several different types of argumentative discourse. For example, it has been used to analyze and evaluate legal argumentation, mediation, negotiation, debate, interpersonal argumentation, political argumentation, health communication and visual argumentation.
