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Morphological knowledge is complex, with a general factor and specific skills impacting reading and vocabulary. Understanding these facets is crucial for educational research and practice.

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Area of Science:

  • Psycholinguistics
  • Educational Psychology
  • Developmental Psychology

Background:

  • Morphological knowledge, understanding word structure, is vital for literacy.
  • Previous research has not fully clarified the structure of morphological knowledge.

Purpose of the Study:

  • To investigate the dimensional structure of morphological knowledge.
  • To examine the relationship between morphological knowledge components and literacy outcomes.

Main Methods:

  • Confirmatory factor analysis of seven morphological tasks in 371 seventh and eighth graders.
  • Structural equation modeling to assess links between morphological factors and literacy measures.

Main Results:

  • A bifactor model best represented morphological knowledge, with a general factor and seven specific factors.
  • General morphological knowledge and morphological meaning processing positively correlated with reading comprehension and vocabulary.
  • Generating morphologically related words positively correlated with vocabulary; word reading and spelling showed small negative correlations.

Conclusions:

  • Morphological knowledge is multifaceted, comprising general and specific abilities.
  • Specific aspects of morphological processing differentially relate to reading comprehension and vocabulary acquisition.
  • Educational interventions should consider the complex nature of morphological knowledge.