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Sensitivity to Graphotactic Regularities in Elementary School: Development and Contributing Variables.

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Area of Science:

  • Cognitive psychology
  • Developmental psychology
  • Educational psychology

Background:

  • Children's literacy acquisition involves sensitivity to graphotactic regularities, the statistical patterns of letter sequences.
  • Understanding the developmental trajectory of this sensitivity is crucial for effective literacy instruction.
  • Previous research has not fully elucidated how different types of graphotactic regularities develop or which cognitive skills contribute to this development.

Purpose of the Study:

  • To examine developmental changes in children's sensitivity to two types of graphotactic regularities: legal/illegal and frequent/infrequent letter strings.
  • To investigate the influence of grade level, expressive spelling, reading fluency, and nonverbal reasoning on graphotactic regularity sensitivity.

Main Methods:

  • A cohort of 1,101 French-speaking children from Grades 1 to 5 participated.
  • Children completed tasks assessing dictation, reading fluency, and pseudo-orthographic choice involving legal/illegal and frequent/infrequent letter strings.
  • Statistical analyses included repeated-measures ANOVA and generalized linear mixed-model analyses.

Main Results:

  • Sensitivity to frequent/infrequent patterns developed faster initially than legal/illegal patterns, reaching equivalence by Grade 3.
  • From Grades 4-5, sensitivity to legal/illegal patterns increased more rapidly, while frequent/infrequent pattern sensitivity slowed.
  • Grade level, expressive spelling, reading fluency, and nonverbal reasoning significantly impacted sensitivity to both types of graphotactic regularities.

Conclusions:

  • Children exhibit distinct developmental trajectories in sensitivity to different types of graphotactic regularities.
  • Reading fluency and expressive spelling are key contributors to graphotactic regularity sensitivity.
  • Findings support educational and clinical applications for understanding and supporting literacy development.