1. The study examined how monolingual and bilingual infants develop associative word learning abilities between 12-14 months of age.
2. Infants were tested using a looking-while-listening preferential looking paradigm to assess whether they could learn to associate novel words with novel objects.
3. The results showed that both monolingual and bilingual infants were able to learn novel word-object associations at 14 months of age, but bilingual infants did not demonstrate this ability at 12 months of age like monolingual infants did.