Purpose: The language that children hear early in life is associated with their speech-language outcomes. This line of research relies on naturalistic observations of children's language input, often captured with daylong audio recordings. However, the large quantity of data that daylong recordings generate requires novel analytical tools to…

Child speech is highly variable. The speech apparatus--the vocal tract, tongue, teeth, and vocal folds--develop at different rates for different children, which helps explain some of the variability in children's speech. For example, the ratio of the oral to pharyngeal cavities changes as children age, making it difficult to establish reliable…

Intercultural bilingual education (IBE) has been discussed in Bolivia since the 1970s. The first Educational Act with a bilingual and intercultural curriculum adapted to cultural and linguistic diversity--Ley de Reforma Educativa--was passed in 1994 with implementation starting in 1996. However, discussions continued: when the Evo Morales…

Educational reform efforts in Bolivia have created possibilities for teacher-training institutions to focus on bilingual intercultural education. How teacher trainers and future teachers embark upon this endeavor differs somewhat depending on the sociolinguistic, historical, and institutional contexts of each community. This article reports…