Several literacy precursors have been identified in monolingual English-speaking
children; however, it is unclear whether the same precursors are also associated with literacy
development in bilingual children. Purpose: We examine whether in simultaneous bilingual
children: (i) code-related, oral-language, and domain-general cognitive literacy precursors
have been utilized, similar to monolingual children; (ii) other types of precursors have been
identified; (iii) code-related, oral-language, domain-general cognitive, or other types of
literacy precursors are associated with word/non-word and/or text-level reading skills; in (a)
one or (b) both spoken languages; (iv) the type of literacy outcome measure, and (v) language
background measure influence performance on emergent literacy skills. Method: We
examined reported statistical associations, between a given literacy precursor and outcome
measure, and conducted a meta-analysis examining specific code-related and oral-language
precursors in relation to word/non-word reading and/or text reading comprehension. Results:
Apart from semantic awareness, all code-related, oral-language, domain-general cognitive
and eight additional identified precursors were significantly associated with reading in
simultaneous bilinguals. However, these precursors were predominantly assessed only in
English, or English in addition to a heritage language. Phonological awareness and
vocabulary emerged as commonly-assessed precursors consistently associated with reading.
Conclusions: Particularly, these code-related and oral-language skills may be used as
precursor screening tools in simultaneous bilinguals, across heritage and societal languages.
Future research should develop language-specific precursor screening tools and investigate
the reliability of non-linguistic precursors, to address the evident English assessment bias and
support biliteracy development across spoken languages.