Elaboration of an instrument to investigate the acquisition of minimal contrast perception in the Brazilian sign language.

Autor: Vargas DZ; Universidade Federal de Santa Maria - UFSM - Santa Maria (RS), Brasil., Mezzomo CL; Universidade Federal de Santa Maria - UFSM - Santa Maria (RS), Brasil., Kessler TM; Universidade Federal de Santa Maria - UFSM - Santa Maria (RS), Brasil.
Jazyk: Portuguese; English
Zdroj: CoDAS [Codas] 2017 Jul 20; Vol. 29 (4), pp. e20160234. Date of Electronic Publication: 2017 Jul 20.
DOI: 10.1590/2317-1782/20172016234
Abstrakt: Purpose: To design an instrument to check the perception of minimal contrasts by through pairs of signs, which differ in one the following parameters: handshape, hand location, hand movement and hand orientation.
Methods: An inventory of minimal pairs was made and some pictures were drawn by a visual artist. These pictures were organized into three columns, which could be equal or different from each other in the pair. A video file with an interpreter making two signs at a time was played to the individual taking the test and this was expected to watch the signs and point to the pictures that corresponded to them. Raters analyzed the pairs and decided whether or not they were accurate. They could modify the pairs or ask for particular pairs to be removed; they also checked if the pictures were clear and if they were part of the children's vocabulary.
Results: The analysis of agreement among raters had a significant result for the criterion rated as 'not a minimal pair'. Thus, 13 items were removed from the instrument because they differed as to more than one parameter, and were considered either analogous or not minimal pairs. Additionally, 16 pairs were modified, and seven pairs which differed in orientation, were added. As a consequence, there was a total of 35 minimal pairs in the final version of the instrument.
Conclusion: The purpose of designing an instrument for evaluation of the perception of minimal contrasts was achieved. Some adjustments were made during the assessment of the content of the instrument as suggested by raters. The final instrument was composed of 35 pairs which differ from each other in only one parameter.
Databáze: MEDLINE