Glossary of Terms

Abstract

The Lexilijst Begrip (Lexi-List Comprehension) is a specialized parent-report instrument designed to evaluate age-appropriate development in language comprehension among toddlers aged 15 to 20 months. Parents complete a checklist indicating which words and simple phrases their child understands. The scale organizes its vocabulary items into 12 distinct semantic categories and includes supplementary questions regarding the overall conditions of the child’s language development.

Keywords

Toddler development, Language acquisition, Parent-report checklist, Lexicon, Language comprehension, Mental functions, Communication.

Authors

Schlichting J, Lutje Spelberg H (2001)

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Purpose

The primary purpose of the Lexilijst Begrip is to serve as an early screening tool for developmental milestones related to language understanding. It allows clinicians and researchers to quickly ascertain whether a child’s receptive vocabulary falls within the expected normative range for their specific age cohort (15 to 20 months).

This assessment is critical for the early identification of potential developmental delays in language acquisition. By utilizing a comprehensive checklist format, the instrument facilitates timely referral and intervention strategies for children who may be struggling with receptive language development or broader mental functions related to communication.

Construct

The scale measures the psychological construct of receptive language ability, specifically focusing on the breadth and depth of the child’s understood lexicon. It operationalizes this construct by cataloging the quantity and variety of words and simple phrases the child demonstrably understands, as reported by the primary caregiver.

The inclusion of 12 distinct semantic categories ensures that the assessment covers diverse aspects of the child’s conceptual world, such as body parts, actions, objects, and social routines, rather than focusing solely on specific word types. The resulting score provides a quantitative measure of the child’s early language comprehension skills.

Validity

Specific details regarding the psychometric properties, such as construct validity (e.g., correlations with standardized language tests) or criterion validity, were not explicitly detailed in the source documentation.

Generally, scales of this nature, which are based on established developmental milestones and typical vocabulary growth curves, rely on expert consensus and alignment with broader normative data derived from large-scale studies of early language development for initial validation. Further research is typically required to establish robust validity across diverse populations.

Reliability

Information concerning the reliability of the Lexilijst Begrip, including measures like internal consistency (e.g., Cronbach’s Alpha) or inter-rater reliability, is absent from the immediate source material.

For parent-report measures, high reliability is essential to ensure consistent reporting across different caregivers and stability of scores over short time intervals (test-retest reliability). The structured nature of the checklist, however, aims to minimize subjective interpretation by the reporting parent.

Factor Analysis

No information regarding formal factor analysis or dimensional structure analysis of the Lexilijst Begrip was available. The instrument is structurally divided into 12 predefined semantic categories, suggesting a theoretical, rather than empirically derived, structure based on typical early vocabulary organization principles.

Instrument

Test Type: Parent-report checklist (Classified as Observational data collection).

Format: Checklist/Questionnaire administered to parents/caregivers.

Language Available: Dutch (Original language).

Population Group: Children (Toddlers).

Age Group: 15 through 20 months.

Population Details: Used to assess typical developmental trajectory in receptive language skills within this critical age window.

Test Methodology: Parents are given the list to complete at home, marking items (words and short phrases) that their child understands. The items are classified into 12 semantic domains. The scale also includes three supplementary questions concerning the child’s general language learning environment and conditions.

Keywords

Receptive vocabulary, Developmental screening, Toddler language, Dutch scale, Semantic development, Parent-reported observation.

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Authors

Author ORCID Identifier: Information not provided.

Affiliation Email addresses: Information not provided.

Correspondence Address: Information not provided.

Permissions & Fee and Test Year

The scale was developed and published in 2001 by Schlichting J and Lutje Spelberg H. Specific details regarding current licensing permissions, usage fees, or commercial availability require consultation with the copyright holders or the publishing body.

Reference’s

Schlichting J, Lutje Spelberg H (2001). Lexilijst Begrip. [Publisher/Journal information not provided in source].

The original explanatory document (Toelichtingsformulier) referenced in the source material can be downloaded here: Toelichtingsformulier (PDF).

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Items of the Lexilijst Begrip

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

The specific vocabulary items and phrases constituting the Lexilijst Begrip were not provided in the source material. The instrument consists of vocabulary items categorized across 12 semantic domains, plus three supplementary questions concerning the general conditions of the child’s language development.