Purpose: Measuring the growth of young children's vocabulary is important for researchers seeking to understand language learning as well as for clinicians aiming to identify early deficits. The MacArthur-Bates Communicative Development Inventories (CDIs) are parent report instruments that offer a reliable and valid method for measuring early…

Background: The Language Development Survey (LDS) and the MacArthur-Bates Communicative Development Inventories (MB-CDI) are two parental report forms that have been productive in providing data on early child language during the past 30 years. The instruments have been used both in studies relating to typical developing children and in screening…

Purpose: The purpose of the current study is to develop a valid and reliable screening tool to identify children with risk of developing language difficulties for Estonian-speaking 2- to 3-year-old children. Method: Nine hundred ninety parents of children ages 1;8-3;1 (years;months) filled in the Estonian MacArthur-Bates Communicative Development…

Research Findings: The aim of this study was to construct and validate "English Picture Vocabulary Test (EPVT)" that aimed to assess the very young learners' (VYLs) receptive and expressive vocabulary knowledge for specific content areas in English as a foreign language (EFL). In this context, EPVT was created in several stages. One of…

Purpose: Pragmatics is receiving much attention in both the fields of developmental and clinical psychology; however, there is a dearth of instruments to assess pragmatic abilities specifically among young toddler-age children. The aim of the current study was to test the psychometric properties of the Italian version of the Language Use Inventory…

The purpose of this study was to develop a parallel bilingual vocabulary measure for the comparative study of receptive and expressive vocabulary growth in young Armenian-English bilinguals. The measure was comprised of four independent vocabulary lists equivalent on age of acquisition ratings. The lists were counterbalanced across four tasks,…

In many low- and middle-income countries, young children learn a mother tongue or indigenous language at home before entering the formal education system where they will need to understand and speak a country's official language(s). Thus, assessments of children before school age, conducted in a nation's official language, may not fully reflect a…

The Modified Checklist for Autism in Toddlers (M-CHAT) is a 23-item questionnaire used in primary screening of Autism Spectrum Disorder (ASD). The current studies examine the concurrent validity of the M-CHAT in its ability to predict 18-month-olds' performance on theory of mind and word learning tasks. In Experiment 1, infants' understanding of…

This study tested the predictive validity of the Communication Composite of the Communication and Symbolic Behavior Scales with 58 children (ages 17 to 34 months) functioning at the prelinguistic stage of language development. Evaluation of expressive vocabulary 1 year later found that the Communication Composite and all tested clusters were…

Thirty-six children, aged four-five, completed four vocabulary measures: Peabody Picture Vocabulary Test-Revised, Picture Vocabulary subtest of the Test of Oral Language Development, Expressive One-Word Picture Vocabulary Test, and Receptive One-Word Picture Vocabulary Test. Only moderate correlations were found among these tests, implying that a…

Purpose: To evaluate the effectiveness of a screening instrument (the Swedish Communication Screening at 18 months of age; SCS18), derived from the Swedish MacArthur-Bates Communicative Development Inventory, in identification of 18-month-old children who will be severely language disabled by 3 years of age, the authors (a) analyzed which SCS18's…