Banca de DEFESA: ALBA MIRANDA BESERRA GURGEL SENA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ALBA MIRANDA BESERRA GURGEL SENA
DATE: 27/08/2024
TIME: 14:00
LOCAL: Plataforma Virtual Google Meet
TITLE:

Reliability, convergent validity and performance of TRILHAR: instrument validation process.

KEY WORDS:

screening; vocabulary; validation studies; children’s language; test reproducibility.

PAGES: 65
BIG AREA: Ciências da Saúde
AREA: Fonoaudiologia
SUMMARY:

Children with restricted vocabulary are at risk for language disorders, and may present delays at morpho-syntactic level, difficulties in decoding and reading comprehension. Identifying this signs contribute to early intervention and, therefore, a better prognosis. TRILHAR is an instrument developed by brazilian researchers and aims screening the receptive and expressive vocabulary of children between 3 and 7 years old. This study aims to contribute to the TRILHAR validation process by verifying the performance difference in students from different regions and by verifying the reliability and convergent validity of the instrument. For the first analysis, there are 255 children between 3 to 7 divided intro two groups: G1 – 122 children from the state of São Paulo and G2 – 133 children from the state of Rio Grande do Norte. All students, from G1 and G2, studies in brazilian public schools. Children in G1 had an average of 9.90 (SD = 0.350) points in receptive vocabulary, while those in G2 had 9.83 (SD = 0.412) points. As for expressive vocabulary, children in G1 had an average of 8.82 (SD = 1.305) and those in G2 8.53 (SD = 1.253) points. To compare performances, the t-test was used, demonstrating a p-value of 0.16 for receptive vocabulary and 0.07 for expressive vocabulary. This result demonstrates that there was no significant difference in performance between the two groups. The semantic aspect can be influenced by the family and school environment, age, parent’s education and sociocultural diversity. Therefore, when developing Brazilian vocabulary measurement and tracking tools, the sociolinguistic reality must be observed. The target words must consider the diversity of vocabulary in a geographically extensive country like Brazil. It is concluded that TRILHAR is suitable for application in these two different sociocultural contexts. Furthermore, it was possible to observe the average score obtained by both populations. This analysis may contribute to the process of establishing expected reference values for each age group. The second analysis aims to verify the convergent validity and reliability of TRILHAR. In addition, it aims to compare the expressive and receptive vocabulary performance of four different clinical groups - children with Speech Sound Disorders (G-SSD), Development Language Disorder (G-DLD), Autism Spectrum Disorder (G-ASD) and children at risk for dyslexia (G-DD) - and to analyze the performance of other vocabulary tests and TRILHAR. The sample consisted of 35 children between 5 and 7 years old (mean of 6.17 ± 0.82). To verify reliability, Cronbach's Alpha was verified by applying TRILHAR twice with an interval of 7 days. It presented very good reliability (α = 0.927). For convergent validity and comparison of vocabulary between the groups, the TVfUSP and ABFW vocabulary were applied. Kendall's Correlation was used for this analysis. The expressive vocabulary screening of TRILHAR showed a moderate correlation with ABFW (r = 0.425; p = 0.002), while the receptive vocabulary screening did not show a significant p (p = 0.063) and demonstrated weak correlation strength (r = 0.291). In the comparison between groups, G-SSD and G-DD had a higher average of correct answers in TRILHAR - 19.54 ± 0.82 and 19.2 ± 1.30 respectively - ABFW - 100 ± 8.49 and 102.33 ± 11.90 - and TVfUSP - 100.63 ± 13.93 and 102.88 ± 13.37. The G-DLD presented the lowest score in TRILHAR and ABFW, 16.9 ± 3.14 for TRILHAR and 73.62 ± 22.69 for ABFW. The G-ASD presented the lowest performance for TVfUSP – 82.25 ± 24.18, but presented a higher score than the G-DLD in ABFW – 93.2 ± 19.99. This performance is consistent with the results found in the literature, since the DLD presents significant implications in the acquisition and development of language, resulting in specific difficulties in phonological and lexical processing - in receptive and expressive vocabulary. In conclusion, TRILHAR presents very good reliability and moderate correlation with the ABFW, a validated instrument and widely used in expressive vocabulary research in Brazil. For the next steps, it is necessary to continue the validation process of the instrument, so that it can be made available for screening the vocabulary of Brazilian children.

COMMITTEE MEMBERS:
Externo à Instituição - APARECIDO JOSÉ COUTO SOARES
Presidente - 2143029 - CINTIA ALVES SALGADO AZONI
Externa à Instituição - DÉBORA MARIA BEFI-LOPES - USP