Progress in International Reading Literacy Study (PIRLS) is a large-scale assessment that measures how effective countries are in teaching reading literacy. Conducted every five years since 2001 (with Australia participating since 2011), PIRLS provides information about how to improve teaching and learning so that young students become…

Home language (HL) effects on academic language literacy have been extensively discussed. However, previous research has mostly focused on Indo--European languages. This study extends the literature by using data (n = 17,600) collected in a diversified language area: Guangxi, China. We examined the effects of four HLs and four socioeconomic…