Morphological awareness is a significant factor in reading comprehension; and struggling readers may use it as a compensatory reading strategy. A Morphological Awareness Battery (MAB) was developed and tested to determine whether it could predict reading comprehension of fourth and fifth grade students with significant reading deficits. The MAB significantly predicted between 10% and 53% of the variation in passage reading comprehension and 35% of the variation in passage reading fluency. Intervention implications are discussed.