Validation of the Brazilian children's test of pseudoword repetition in portuguese speakers aged 4 to 10 years

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Abstract

The phonological loop is a component of the working memory system specifically involved in the processing and manipulation of limited amounts of information of a sound-based phonological nature. Phonological memory can be assessed by the Children's Test of Nonword Repetition (CNRep) in English speakers but not in Portuguese speakers due to phonotactic differences between the two languages. The objectives of the present study were: 1) to develop the Brazilian Children's Test of Pseudoword Repetition (BCPR), a Portuguese version of the CNRep, and 2) to validate the BCPR by correlation with the Auditory Digit Span Test from the Stanford-Binet Intelligence Scale. The BCPR and Digit Span were assessed in 182 children aged 4-10 years, 84 from Minas Gerais State (42 from a rural region) and 98 from the city of São Paulo. There are subject age and word length effects causing repetition accuracy to decline as a function of the number of syllables of the pseudowords. Correlations between BCPR and Digit Span forward (r = 0.50; P ≤ 0.01) and backward (r = 0.43; P ≤ 0.01) were found, and partial correlation indicated that higher BCPR scores were associated with higher Digit Span scores. BCPR appears to depend more on schooling, while Digit Span was more related to development. The results demonstrate that the BCPR is a reliable measure of phonological working memory, similar to the CNRep.

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Santos, F. H., & Bueno, O. F. A. (2003). Validation of the Brazilian children’s test of pseudoword repetition in portuguese speakers aged 4 to 10 years. Brazilian Journal of Medical and Biological Research, 36(11), 1533–1547. https://doi.org/10.1590/S0100-879X2003001100012

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