Journal of Speech, Language, and Hearing Research Vol.55 669-682 June 2012. doi:10.1044/1092-4388(2011/11-0111)
© American Speech-Language-Hearing Association
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Article

Children's Verbal Working Memory: Role of Processing Complexity in Predicting Spoken Sentence Comprehension

Beula M. Magimairaja
James W. Montgomerya
a Ohio University, Athens

Correspondence to Beula M. Magimairaj: magimair{at}ohio.edu

Purpose: This study investigated the role of processing complexity of verbal working memory tasks in predicting spoken sentence comprehension in typically developing children. Of interest was whether simple and more complex working memory tasks have similar or different power in predicting sentence comprehension.

Method: Sixty-five children (6- to 12-year-olds) completed a verbal working memory (listening) span task that varied in syntactic processing difficulty (simple sentences representing a "simple working memory task," complex sentences representing a "complex working memory task") and a standardized sentence comprehension test.

Results: Word recall on the simple and complex working memory tasks correlated with each other. Both memory tasks also correlated with children's sentence comprehension. Regression analyses showed that the simple working memory task remained a significant predictor of comprehension even after accounting for variance associated with age and performance on the complex working memory task.

Conclusions: Results were interpreted to suggest that relative to more complex verbal working memory tasks, simple tasks are more robust predictors of children's sentence comprehension because they represent a basic yet robust index of working memory that sufficiently captures controlled attentional focus.

KEY WORDS: working memory span, processing complexity, sentence comprehension, children


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