Article
作者: Alshakhori, Mohammed K ; Ota, Mitsuhiko ; Potter, Christine E ; Bergmann, Christina ; Mayor, Julien ; Ryjova, Yana ; Rennels, Jennifer L ; Tsui, Angeline S M ; Ko, Eon-Suk ; Boyce, Veronica ; Muñoz, Luis E ; Machon, Lauren C ; Kiley Hamlin, J ; Soderstrom, Melanie ; Fritzsche, Tom ; Frank, Michael C ; Davies, Catherine ; Hay, Jessica F ; Byers-Heinlein, Krista ; Skarabela, Barbora ; Rocha-Hidalgo, Joscelin ; Seidl, Amanda ; Gonzalez-Gomez, Nayeli ; Anderson, Laura ; Werker, Janet F ; Kartushina, Natalia ; Kammermeier, Marina ; Gampe, Anja ; Al-Hoorie, Ali H ; Havron, Naomi ; Kim, Hyunji ; Nave, Karli M ; Jessop, Andrew ; Durrant, Samantha ; Paulus, Markus ; Cashon, Cara ; Lew-Williams, Casey ; Hannon, Erin E ; Black, Alexis K ; Olesen, Nonah M ; Martin, Alia ; Bochynska, Agata
Abstract:From early on, infants show a preference for infant-directed speech (IDS) over adult-directed speech (ADS), and exposure to IDS has been correlated with language outcome measures such as vocabulary. The present multi-laboratory study explores this issue by investigating whether there is a link between early preference for IDS and later vocabulary size. Infants’ preference for IDS was tested as part of the ManyBabies 1 project, and follow-up CDI data were collected from a subsample of this dataset at 18 and 24 months. A total of 341 (18 months) and 327 (24 months) infants were tested across 21 laboratories. In neither preregistered analyses with North American and UK English, nor exploratory analyses with a larger sample did we find evidence for a relation between IDS preference and later vocabulary. We discuss implications of this finding in light of recent work suggesting that IDS preference measured in the laboratory has low test-retest reliability.