Does Knowledge Drive Syntactic Complexity?
Purpose: This study examined language productivity and syntactic complexity in school-age children in relation to their knowledge of the topic of discussion, the game of chess. Method: Children (mean age = 10;11) (n = 32) who played chess volunteered to be interviewed by an adult examiner who had little or no experience playing chess. Children’s chess knowledge and experience was assessed, and each child was classified as a novice or an expert player. Each child participated in three speaking tasks: a General Conversation, Chess Conversation, and Chess Explanation. Interviews were audio-recorded, transcribed into SALT, segmented into T-units, and coded for finite clauses. Each speaking task was analyzed for Total T-units; Mean Length of T-unit; Clausal Density; and Nominal, Relative, and Adverbial Clause Use. Results: Total T-units, Mean Length of T-unit, Clausal Density, and the use of each type of subordinate clause was substantially higher in the Chess Explanation task compared to t