Research syntheses have demonstrated that morphological instruction can improve the literacy skills of poor readers and spellers. However, studies have used a wide variety of training methods. Questions remain about what type of morphological instruction is most effective and under which circumstances. In this study, we conducted a randomized…

Students with limited vocabulary knowledge are at high risk for reading comprehension difficulties. Previous studies have found that teaching morphology may support vocabulary growth. In the present study, the authors aimed to replicate and extend these findings by investigating both immediate and long-term transfer effects to untaught words and…

The primary aim of this study was to explore the relationship between teachers' instruction and students' vocabulary and comprehension in grades 3-5. The secondary aim of this study was to investigate whether this relationship differed for English monolingual and Spanish-English bilingual students. To meet these aims, we observed and…

Reports from research and the larger educational community demonstrate that too many students have limited ability to comprehend texts. The research reported here involved a two-year study in which standardized comprehension instruction for representations of two major approaches was designed and implemented. The effectiveness of the two…