Children's memory for phonemically confusable and nonconfusable letters: changes with age and reading ability.

Area of Science:

• Cognitive Psychology
• Developmental Psychology
• Educational Psychology

Background:

• Phonemic coding is crucial for short-term memory, especially in reading.
• Age and reading skill are known factors influencing cognitive processes.
• Previous research indicated significant differences in phonemic code use between good and poor readers.

Purpose of the Study:

• To investigate age-related differences in phonemic coding for short-term retention.
• To compare phonemic code utilization between average, disabled, and superior readers across different grade levels.
• To examine the developmental lag hypothesis of reading disability.

Main Methods:

• Participants recalled 6-letter strings (rhyming and nonrhyming) after a 15-second delay.
• Experimental conditions manipulated phonemic coding and rehearsal opportunities.
• Subjects included grade 2 average, grade 4 disabled/average, and grade 6 disabled/superior readers.

Main Results:

• Average readers demonstrated improved performance with age across all conditions.
• Memory recall was superior under non-suppression conditions, with nonrhyming letters recalled better than rhyming.
• Differences in phonemic code use between good and poor readers were less pronounced in grades 4 and 6 compared to younger children.

Conclusions:

• Age positively impacts phonemic coding in short-term memory tasks.
• The developmental lag hypothesis's applicability to reading disability requires further nuanced investigation.
• Reading skill differences in phonemic code use may be less pronounced in older children than previously thought.