Socioeconomic Status Predicts Infant Word Recognition: Evidence From a Linguistically, Ethnically, and...

Prior research has demonstrated that infants have the capacity to recognize some familiar words. However, past studies have not analyzed the sociodemographic generalizability of research findings. In the current study, we examine word recognition in a linguistically, ethnically, and socioeconomically diverse community sample. A community sample of Singaporean infants from diverse socioeconomic and linguistic backgrounds between 5 and 12 months of age were tested on their ability to recognize common nouns in a looking-while-listening task. Results revealed that parental socioeconomic status, the amount of exposure to English, and infants' age significantly predicted their word recognition performance. A subsequent sensitivity analysis revealed that the effects of SES and age on word recognition were robust. The results demonstrate that socioeconomic status contributes significantly to variation in infants' abilities to recognize familiar words. Findings emphasize the importance of integrating and analyzing effects of sociodemographic representation into studies on infant word learning.