Children with speech delays exhibited significantly lower WM scores compared to the control group (p < 0.05).
LTM retrieval was slower and less accurate in the speech-delayed group, particularly for semantic memory tasks.
4.2 Language Development Deficits
Delayed vocabulary acquisition and limited sentence complexity were observed.
Receptive language (comprehension) was relatively stronger than expressive language (speech production) in most participants.
4.3 Correlation Between Memory and Language
A strong positive correlation (r = 0.78) was found between WM capacity and sentence production skills.
LTM performance was strongly linked (r = 0.72) to vocabulary acquisition and retrieval speed.
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5. Discussion
5.1 Memory as a Predictor of Language Outcomes