Despite recent advances (e.g. Cheshire 2007; Pichler 2010; Denis 2015), discourse-pragmatic variables continue to challenge variationist theory and methods. An overarching dilemma concerns multifunctionality, raising difficulties for semantic equivalency and the circumscription of the variable context. In this article we present a case study to illustrate that deconstructing a discourse-pragmatic marker into its composite parts reveals clear criteria for disambiguating its principal function and its contextually derived functions. The discussion centres on the pragmatic marker eh in Canadian English. We illustrate that its multifunctionality is derivable from four parts: principal function, syntactic context, prosodic context, and discourse context. Our deconstruction uses a two-pronged methodology, drawing on storyboard elicitation and sociolinguistic interview data, which mutually reinforce our theoretical arguments. Under this transdisciplinary lens, the exponents of form and function become predictable, constrainable, and systematically derivable for probabilistic modelling within and across speech communities. (Confirmationals, multifunctionality, pragmatic markers, eh, speech acts)
Deconstructing variation in pragmatic function: A transdisciplinary case study