Reading skills are considered an important lever for success in school and active participation in society. They are positively associated with reading motivation, reading self-concept, reading frequency, and behavioral engagement in reading (e.g., time, effort), variables that tend to decline as students move from elementary to secondary school.…

Although literacy achievement has improved in Chile, adolescents' underperformance in reading comprehension is still a serious concern. In English, core academic-language skills (CALS) have been found to significantly predict reading comprehension, even controlling for academic vocabulary knowledge. CALS are high-utility language skills that…