Purpose: Morphology, which is a bridge between phonology and orthography, plays an important role in the development of word-specific spellings. This study, which employed longitudinal sampling of typically developing students in Grades 3, 4, and 5, explored how the misspellings of words with derivational suffixes shed light on the interplay of…

In Study 1, the treatment group (N = 33 first graders, M = 6 years 10 months, 16 girls) received Slingerland multi-modal (auditory, visual, tactile, motor through hand, and motor through mouth) manuscript (unjoined) handwriting instruction embedded in systematic spelling, reading, and composing lessons; and the control group (N = 16 first graders,…

To identify effective treatment for both the spelling and word decoding problems in dyslexia, 24 students with dyslexia in grades 4 to 9 were randomly assigned to treatments A (n = 12) or B (n = 12) in an after-school reading-writers' workshop at the university (thirty 1-h sessions twice a week over 5 months). First, both groups received step 1…

After explicit spelling instruction, low achieving second grade spellers increased the number of correctly spelled words during composing but differed in response trajectories. Class 1 (low initial and slow growth) had the lowest initial performance and improved at a relatively slow rate. Class 2 (high initial and fast growth) started higher than…

The International Dyslexia Association defines dyslexia as unexpected problems of neurobiological origin in accuracy and rate of oral reading of single real words, single pseudowords, or text or of written spelling. However, prior research has focused more on the reading than the spelling problems of students with dyslexia. A test battery was…

Two studies compared the effectiveness of alphabet principle training only versus combined alphabet principle and syllable awareness training with at-risk spellers (grades 2 and 3). Differing results suggest use of a two-tier early intervention model in which first the alphabet principle is taught and applied and then the following year children…

Poor spellers in second grade (N=128) participated in sessions that included direct instruction in the alphabet principle, modeling of different approaches for developing connections between spoken and written words, and practice in composing. Results of this multilayered approach are discussed, including evidence that training in spelling…

Third graders with low compositional fluency were randomly assigned to four time-equated treatments in an instructional experiment: spelling, composing, combined spelling plus composing, and treated control. All treatments increased compositional fluency. Results are related to the simple view of writing that integrates diverse theoretical…