A Case Study of a 3-Year-Old in a Malay-Indonesian Environment

Speech Development of a Bilingual Child

Abstrak

This study examines the bilingual speech development of a three-year-old child, Muhammad Arkan, who grows up in a Malay-dominant household while gradually acquiring Indonesian as his second language. The data were collected through two weeks of naturalistic observation supported by a semi-structured interview with the child’s mother. Findings show a clear dominance of Malay in Arkan’s daily communication, influenced by the linguistic patterns of his family, peers, and wider neighborhood community. Indonesian emerges more slowly and primarily in mother–child interactions, where intentional scaffolding, storytelling, and exposure to children’s media provide meaningful L2 input.

Throughout the observation period, Arkan frequently engaged in natural code-switching, combining Malay and Indonesian within single utterances. Rather than indicating linguistic confusion, this pattern reflects his growing communicative flexibility and ability to use both languages strategically depending on context, interlocutor, and purpose. His speech development aligns with key perspectives in early bilingual acquisition, including the role of environmental input (De Houwer, 2009), the influence of meaningful and comprehensible exposure (Krashen, 1982), and the sociocultural nature of language learning (Vygotsky, 1978).

The findings highlight how early bilingual development is shaped not only by linguistic exposure but also by emotional connections, daily routines, cultural norms, and the child’s social environment. This case illustrates the importance of acknowledging children’s home languages in early educational settings, as a strong foundation in the first language can support smoother and more confident development of the second language. Overall, the study underscores the value of viewing bilingual children through both linguistic and human-centered lenses, especially as they transition into formal schooling.