Different paces (but not different paths) in language acquisition
This study examines the acquisition of irregular morpho-phonological alternations (word final k-Ø, p-b, t-d, and ç-c alternations) by two different populations of Turkish speaking children, twins vs. singletons around age 3;0. The results, based on an elicited production test, suggest that relatively more regular and more frequent alternations (k-Ø alternation) are acquired earlier and children, like adults, are sensitive to word length in their alternations. Twins follow the same pattern but with a slower pace. Twins’ delay is attributed to their exposure to each other’s erroraneous speech, which is not a regular experience that one can observe in a singleton home.