Phonological Verbal Fluency Test for Russian-Speaking Children
Introduction: Verbal fluency tasks are mainly used for assessment of verbal fluency and have proven useful for differential diagnosis. The first objective of the study was to provide normative data on phonemic verbal fluency (for letters “Π” [p], “O” [o], “C” [s]) in children population. The second objective of the study was to establish diagnostic validity of the present task and to collect normative data on participants who survived posterior fossa tumor (PFT) and participants with treated hemoblastosis.
Method: For diagnostics, we used verbal fluency test. The normative sample consisted of 746 participants aged 7–16 years. A linear multiple regression analysis was implemented for each dependent variable with age, gender, disease for all participants and academic achievement as predictors in normative sample. The performance of 746 healthy participants was compared to the performance of 118 participants who survived PFT and 492 participants who survived hemoblastosis using one-way ANOVA analysis.
Results: Healthy children have better verbal fluency than their peers who survived cancer. In the group of healthy children, we assessed the relationship between verbal fluency and school performance. A significant correlation with the “Russian language” subject (r = 0.127; p < 0.001) emerged. In all three groups of children, age and gender turned out to be significant factors that affected the characteristics of verbal fluency.
Conclusion: Our data will contribute to increasing the accuracy of verbal fluency deficit detection in Russian speakers and will be useful for differential diagnosis of cognitive impairment for children who have survived oncological diseases of various geneses.
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