The purpose of this dissertation is to investigate linguistic variation within ESL/EFL reading textbooks and between EAP reading textbooks and lower-division university textbooks. Specifically, within ESL/EFL reading textbooks, lexical, lexico-grammatical, and formulaic variation was measured within series of textbooks, across textbooks at the…

The present study is based on the theoretical assumptions that frequency of characters and their structural components, as well as the frequency types of structural components, are important to enable learners of Chinese as a foreign language (CFL) to discover the underlying structure of Chinese characters. In the CFL context, since reliable…