Modeling developmental changes in print tuning in a transparent alphabetic orthography

Area of Science:

• Cognitive Psychology
• Developmental Psychology
• Educational Psychology

Background:

• Print tuning enhances orthographic representations, but the developmental relationship between decoding accuracy and efficiency, and its impact on reading disabilities, remains unclear.
• Understanding the interplay of accuracy and efficiency in reading acquisition is vital for identifying and addressing reading difficulties.

Purpose of the Study:

• To investigate the developmental trajectories of decoding accuracy and efficiency in Dutch, a transparent orthography, across primary school grades.
• To examine how orthographic complexity and lexical status influence the development of decoding skills.
• To determine the relationship between accuracy and efficiency in different reader profiles and their implications for reading disability.

Main Methods:

• Longitudinal monitoring of decoding accuracy and efficiency in Dutch-speaking children throughout primary school.
• Analysis of performance based on varying levels of orthographic complexity and lexical status (real words vs. pseudowords).
• Comparison of developmental patterns across different reader profiles.

Main Results:

• Decoding accuracy development consistently preceded decoding efficiency development.
• A significant threshold of accuracy was necessary for the development of decoding efficiency.
• Pseudoword decoding efficiency was a predictor of growth in word decoding efficiency, particularly with higher orthographic complexity.
• Accuracy was found to precede efficiency across diverse reader profiles.

Conclusions:

• Decoding accuracy is a prerequisite for the development of decoding efficiency in reading acquisition.
• Decoding strength is a function of both orthographic complexity and lexicality.
• These findings offer insights into the developmental underpinnings of reading ability and disability, informing targeted interventions.