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Short-term memory and equivalence judgments in normal and retarded readers
Child Development
|March 1, 1976
Summary
This study found that reading disabilities impact short-term memory, specifically in tasks requiring difference judgments after a delay. Retarded readers struggled with delayed difference tasks but not with same/different judgments immediately.
Area of Science:
- Cognitive Psychology
- Developmental Psychology
- Educational Psychology
Background:
- Reading disabilities are associated with various cognitive challenges.
- Short-term memory is crucial for complex cognitive tasks, including reading comprehension.
Purpose of the Study:
- To investigate short-term memory differences between normal and disabled readers.
- To determine if specific task parameters (delay, stimulus type) affect performance.
Main Methods:
- Matched groups of normal and disabled readers performed same/different judgments.
- Stimuli were presented with 0, 1, or 6-second delays.
- Stimuli varied in sameness, element order, or specific elements.
Main Results:
- Disabled readers performed comparably to controls on same tasks across all delay conditions.
- Disabled readers were significantly impaired on difference tasks with 1- and 6-second delays.
- Both order and element differences equally distinguished disabled from normal readers.
Conclusions:
- A deficit in short-term memory is indicated in disabled readers.
- This deficit is specific to tasks requiring difference judgments after a temporal delay.