Assessment of vocabulary size – a new tool for testing preschool children

The paper presents the first phase of research aimed at the construction of Picture Vocabulary Test (part I – Comprehension; OTS-R). Development of a mental lexicon is one of the basic components of linguistic and communicative competence (Michnick-Golinkoff et al., 2000; Hall and Waxman, 2004). Vocabulary size affects other aspects of language acquisition e.g. grammar (Dale et al., 2000; Dionne et al., 2003). Presented measure aims at the assessing word comprehension in preschool Polish children. In this phase of research, 351 children (age 2–6) took part in the study. Word comprehension was assessed by a picture choice task. Children were presented with a series of four pictures charts, each containing pictures depicting a target word (noun, verb, or adjective) and three distractors related to the target word phonetically, semantically, and thematically. Results show a gradual increase of vocabulary with age, better understanding of verbs over nous and adjectives, and a greater proportion of semantic errors over the other two types of errors. The study enabled the preparation of a new version of assessment tool which is going to be used in the subsequent phase of the research (norming study).

Assessment of vocabulary size – a new tool for testing preschool children

The paper presents the first phase of research aimed at the construction of Picture Vocabulary Test (part I – Comprehension; OTS-R). Development of a mental lexicon is one of the basic components of linguistic and communicative competence (Michnick-Golinkoff et al., 2000; Hall and Waxman, 2004). Vocabulary size affects other aspects of language acquisition e.g. grammar (Dale et al., 2000; Dionne et al., 2003). Presented measure aims at the assessing word comprehension in preschool Polish children. In this phase of research, 351 children (age 2–6) took part in the study. Word comprehension was assessed by a picture choice task. Children were presented with a series of four pictures charts, each containing pictures depicting a target word (noun, verb, or adjective) and three distractors related to the target word phonetically, semantically, and thematically. Results show a gradual increase of vocabulary with age, better understanding of verbs over nous and adjectives, and a greater proportion of semantic errors over the other two types of errors. The study enabled the preparation of a new version of assessment tool which is going to be used in the subsequent phase of the research (norming study).