Vocabulary knowledge is one of the most important elements of reading comprehension. Text coverage is the proportion of known words in a given text. We hypothesize that text comprehension increases exponentially with text coverage due to network effects and activation of prior knowledge. In addition, the lexical threshold hypothesis states that…

The two studies reported on in this paper examine the features of words that distinguish students' performances on vocabulary assessments as a means of understanding what contributes to the ease or difficulty of vocabulary knowledge. The two studies differ in the type of assessment, the types of words that were studied, and the grade levels and…

Providing instruction to students with autism spectrum disorder (ASD) can be challenging for teachers since students can have a range of unique learning needs, particularly in reading comprehension. Given that reading comprehension is a complex process requiring the use of various knowledge and skills simultaneously, many students with ASD often…

Vocabulary knowledge is a salient factor influencing success both in and out of school. The specialized vocabulary knowledge in science represents the concept-laden hooks on which learning is hung and enables students to build prior knowledge through the expansion of these conceptual hooks. We have identified four levels of learners--struggling…

This book provides classroom-tested methods for engaging struggling middle grade readers--even those who appear to have given up--and fostering their success. The emphasis is on constructing respectful, encouraging learning environments that incorporate students' diverse literacies, cultural interests, and prior knowledge and skills into…