title: Referential style at thirteen months: why age-defined cross-sectional measures are inappropriate for the study of strategy differences in early language development.
abstract: This study examines the relationship between cross-sectional measures of referential style taken at 1; 1 and measures based on the first 50 words in 12 first-born children. Since no significant relationship is found it is argued that age-defined cross-sectional measures are inappropriate for the study of strategy differences in early language development because they confound such differences with variation due to differences in development level.
authors: Department of Psychology, University of Dundee, UK.
authors: J M
authors: JM
authors: Pine
authors: E V
authors: EV
authors: Lieven
mesh_terms: D003430:Cross-Sectional Studies; D006801:Humans; D007223:Infant; D007804:Language Development; D012660:Semantics; D014706:Verbal Learning; D014825:Vocabulary