This guide offers advice on the assessment of the language development abilities of bilingual preschool children. A brief review of general bilingual child language development, including mixing and loss or semilingualism, is followed by a review of current assessment practices. A language assessment procedure developed for the State of California…

Spanish-speaking children of Mexican descent living in California were tested on the acquisition of 18 Spanish consonants. The 120 subjects (aged 3 to 5:7 years) were equally divided into eight age groups, and the median ages (50%) and upper age limits (90%) of customary production of each consonant were determined. (Author/JDD)