Introduction: Normal non-fluency is one of the most common speech disorder with numerous complications in children. Hypotheses proposed for the causes of the disorder is working memory disfunction. This study was designed to examine phonological working memory function in these children and with hope to use its results in treatment.
Method: In this causal-comparative study, 30 normal non-fluent males (age 5 to 6 years) and 30 normal males, were assessed with standard tests including digit recall, word recall and non word repetition. After calculating scores of subjects in each of the three tests performed, in order to analyze data and compare the difference between the two groups, t test for comparison of independent groups and Mann-Whitney U was used.
Results: Results showed that boys with normal non-fluency, in the three test digit recall (p