Chapter published in:
Social Environment and Cognition in Language Development: Studies in honor of Ayhan Aksu-Koç
Edited by F. Nihan Ketrez, Aylin C. Küntay, Şeyda Özçalışkan and Aslı Özyürek
[Trends in Language Acquisition Research 21] 2017
► pp. 99–110

Chapter 7
Sibling influence on morphological development?

| İstanbul Bilgi University, Turkey
Turkish-speaking monolingual children who had a twin sibling, and singleton children without siblings were compared at age 2;0 in terms of their morphological complexity. Children in two groups were balanced according to their birth weight and gestational age. The difference observed between the two groups was attributed to twin children’s exposure to their sibling’s language rather than the disadvantages due to “triadic” interaction patterns observed in twin homes. Singletons with older siblings and twins were further contrasted in terms of their speech as well as their siblings’ speech and the findings supported the results.
Keywords: morphological complexity, MLU, MLW, social environment, sibling influence, twins, triadic interaction
Article outline
  • 1.Introduction
  • 2.Method
  • 3.Results and discussion
    • 3.1Twins vs. singletons
    • 3.2Triadic interaction pattern and sibling language
    • 3.3Sibling speech as a part of CDS
  • 4.Conclusion
  • Acknowledgment
  • References
Published online: 18 July 2017
https://doi.org/10.1075/tilar.21.07ket
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