Jeannette Mancilla-Martinez, Nonie K. Lesaux
This longitudinal study examined the process of English reading comprehension at age 11 years for 173 low-achieving Spanish-speaking children. The influence of growth rates, from early childhood (age 4.5 years) to pre-adolescence (age 11 years), in vocabulary and word reading skills on this complex process were evaluated with structural equation modeling. Standardized measures of word reading accuracy and productive vocabulary were administered annually, in English and Spanish, and English reading comprehension measures were administered at age 11 years. Latent growth curve analyses revealed that English skills accounted for all unique variance in English reading comprehension outcomes. Further, expected developmental shifts in the influence of word reading and vocabulary skills over time were not shown, likely on account of students' below-grade-level reading comprehension achievement. This work underscores the need for theoretical models of comprehension to account for students' skill profiles and abilities.