Early development and predictors of morphological awareness: Disentangling the impact of decoding skills and phonological awareness.

The team followed 200 Finnish kids from age 3½ to 8½. Half had a parent or sibling with dyslexia.

Every year they tested phonological awareness, decoding, and morphological awareness. Morphological awareness means spotting word parts like “un-” or “-ed.”

They wanted to know which early skill best predicts later morphological awareness.

Kids with family risk stayed behind in morphological awareness every year.

Phonological awareness predicted morphological scores only in preschool.

First-grade decoding speed predicted morphological scores in second and third grade.

Waiting for solid decoding did not close the gap.

McKenna et al. (2017) checked 30 single-case reading studies for kids with emotional disorders. Two-thirds failed quality standards. Their warning matches M et al.: poor readers need tight design and early, explicit targets.

Cheng et al. (2011) found that Taiwanese young learners with motor delays had writing problems but normal reading. This seems opposite to M et al.’s reading-weak group, yet the scripts differ: Chinese characters give visual cues that alphabetic Finnish lacks.

Rodriguez-Goncalves et al. (2021) gave high-schoolers with dyslexia text-to-speech software and saw fluency gains. M et al. says start earlier: if you wait until high school to compensate, the morphological gap is already cemented.

Start morphological awareness drills in first grade for any child with family risk. Do not wait until decoding is fluent. Use brief daily games: break “jumped” into “jump + ed,” build new words with prefixes. Track progress each quarter; if growth is flat, intensify dose before third grade.