Given the morphophonemic nature of the English orthography, surprisingly few studies have examined the roles of morphological and phonological awareness in reading. This 4-year longitudinal study (Grades 2–5) compared these two factors in three aspects of reading development: pseudoword reading, reading comprehension, and single word reading. Morphological awareness contributed significantly to pseudoword reading and reading comprehension, after controlling prior measures of reading ability, verbal and nonverbal intelligence, and phonological awareness. This contribution was comparable to that of phonological awareness and remained 3 years after morphological awareness was assessed. In contrast, morphological awareness rarely contributed significantly to single word reading. We argue that these results provide evidence that morphological awareness has a wide-ranging role in reading development, one that extends beyond phonological awareness.

The authors reviewed all peer-reviewed studies with participants from preschool to Grade 8 for this meta-analysis of morphological interventions. They identified 22 applicable studies. Instructional effects (Cohen’s d) were averaged by linguistic outcome categories (morphological sublexical, nonmorphological sublexical, lexical, and supralexical) and comparison group (experimental group vs. control or experimental group vs. alternative training). The authors investigated the effects of morphological instruction (a) on reading, spelling, vocabulary, and morphological skills, (b) for less able readers versus undifferentiated samples, (c) for younger versus older students, and (d) in combination with instruction of other literacy skills or in isolation. Results indicate that (a) morphological instruction benefits learners, (b) it brings particular benefits for less able readers, (c) it is no less effective for younger students, and (d) it is more effective when combined with other aspects of literacy instruction. Implications of these findings are discussed in light of current educational practice and theory.

This study examines how measures of articulation rate, verbal short-term memory (STM), naming speed, and phonological awareness tasks administered in kindergarten and again in Grade 1 jointly and uniquely predict word reading and passage comprehension variance in Grades 1, 2, and 3. Results from regression and commonality analyses indicated that (a) when measured in Grade 1, phonological processing tasks were better, but not significantly better, predictors of later reading than when measured in kindergarten; (b) articulation rate and verbal STM did not uniquely predict reading if phonological awareness and naming speed were controlled; (c) when measured in kindergarten, both phonological awareness and naming speed accounted for unique variance in reading measures, and (d) when measured in Grade 1, phonological awareness was the strongest predictor of reading. Commonality analyses indicated that kindergarten letter recognition shares large parts of its predictive variance with phonological awareness and n...