Development of a screening instrument for early language delay in Hong Kong Chinese: a preliminary study.

Having language delay--one of the common neurodevelopmental difficulties during childhood--does not only imply an impairment in communication in the 1st few years of life. Previous studies have suggested that language problems have long-term implications for social, emotional, and intellectual development. Researchers have found that early identification and intervention of speech and language delay yields better treatment effects. However, unlike most of the motor developmental assessment tools, language assessment tools are not readily transferred across cultures because of the different linguistic features and the developmental stages of such features in a particular language or dialect. The present study presents an empirical example of the initial development of a culturally sensitive screening protocol, using vocabulary size as the indicator to minimize the effect of linguistic differences.