Phonological acquisition in three languages : a cross-sectional study in English, Mandarin and Malay.

The complex multiracial/multilingual situation of Malaysia poses challenges for
local professionals, such as speech and language therapists, who work with
children. The present cross-sectional study investigated ethnic Chinese children's
simultaneous phonological acquisition of English, Mandarin and Malay, which
are the three major local languages for the Malaysian Chinese population. The
aims were to provide preliminary normative data on phonological acquisition for
this population, as well as to investigate processes underlying multilingual
phonological acquisition. Sixty-four pre-school children aged between 2;06-4;05
were recruited. A single-word naming test, a word consistency production subtest
and an intonation imitation sub-test were devised for each of the three
languages. Particular attention was paid to the characteristics of the local adult
speech varieties as the benchmark for assessing and analyzing the children's
responses on the tests. This sociolinguistic dimension has often been neglected in
previous research with similar populations, where non-local, e.g. "standard" adult
varieties have been taken to be the language model for the children being studied.
The children's phonological acquisition was analysed in term of consonants,
vowels, syllable structures, word production consistency, intonation and tones
(Mandarin only). Overall, significant developmental trends were evident for all
three languages. Most phonological components under study were acquired by
4;00-4;05. Similar phonological milestones were achieved as those reported in the
literature for monolingual and bilingual peers acquiring the same languages,
though some qualitative and quantitative differences were observed. Overall, the
patterns of phonological development that were identified reflect the interaction
of common cross-linguistic tendencies with the specific characteristics of the
three ambient languages. As well as having clinical implications, the present
findings contribute to the development of theory and models for multilingual
phonological acquisition. The reliability and validity of the test battery indicate
that it will prove a valuable tool for speech and language therapy practice and for
future research.