How proficiency in reading the first language (L1) influences proficiency in reading in the second language (L2) was explored in this study. Reading scores in Mandarin Chinese (L1) and in English (L2) for 30,000 Taiwanese ninth-grade students were randomly selected from all who took the national Basic Competency Test during a 6-year period in Taiwan. Results of regression analyses showed that proficiency in L1 reading predicts with statistical significance the L2 reading proficiency of those whose scores were analyzed. In addition, participants' gender and school district also played small but statistically significant roles affecting the cross-language transfer of reading ability. The results are discussed in light of Cummins's linguistic interdependence hypothesis.
KeywordsEnglish as a foreign language, L1 reading, L2 reading, linguistic interdependence hypothesis, reading transferReading is a complex process with a goal of understanding texts (Snow, 2002) and is perhaps the most important medium for acquiring skills and knowledge. Reading involves mastering the orthography to decode words to extract meaning from texts, and comprehension relies on background knowledge, cognitive strategies for comprehending, and vocabulary knowledge. A student is severely handicapped by low