Abstract
To investigate, through a systematic review, how three assessment instruments for children's vocabulary (Test of Childhood language ABFW, Expressive Vocabulary Test - EVT, and Peabody Picture Vocabulary Test - PPVT) have been used in Brazilian research, verifying its purposes of uses and the main results of the researches. This review was organized in three studies. Study 1 referred to the process of a priori search and Study 2 referred to the a posteriori search. We searched for three Brazilian's database (CAPES, SciELO, and PePSIC). For Study 1, we selected empirical studies containing research data with one of the three-targeted tests, using typically developing school children (7 to 10 years old). For Study 2, we enlarged the age range for pre-school and extended the search to non-typically developing children. The selected articles were fully read and synthesized in a table containing the study's aims, the age range of the sample, instrument, research design, main results, and journal. We found out 24 articles, most of which from the speech-language therapy area. The results indicated the predominance of cross-sectional and observational studies, aiming to delineate the cognitive profile of children with some developmental disturbance, with or without control groups. None of the researches conducted a psychometric inquiry of the instruments. In Brazil, it is necessary to carry out research focusing on the psychometric inquiry of instruments for evaluating the vocabulary in pre-school and school-age children.
Highlights
The habitual concept of vocabulary indicates the set of words of a certain language, or words known by an individual
Vocabulary is usually seen as an inventory of individual words and their meaning; in this perspective, vocabulary knowledge implies knowing the meaning of the word
Receptive vocabulary corresponds to a group of words that the person can understand, while the expressive is related to the lexicon, i.e., the words that can be produced[2]
Summary
The habitual concept of vocabulary indicates the set of words of a certain language, or words known by an individual. It is necessary to understand that words are the language building blocks, units of meaning that form the most complex structures such as phrases, paragraphs, and texts[1]. The use of a more specific definition can distinguish the terms “lexicon” and “vocabulary”, with the first being a group of words available to the subjects, while the latter would be a sample of the individual lexicon, i.e., “a group of words that are used by the speaker in the act of speech” We can distinguish between receptive and expressive vocabulary. Receptive vocabulary corresponds to a group of words that the person can understand, while the expressive is related to the lexicon, i.e., the words that can be produced[2]
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