Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Three Developmental Domains01:29

Three Developmental Domains

1.4K
Human development is typically examined across three main domains: physical, cognitive, and socio-emotional. These domains represent the significant areas of change and continuity throughout the lifespan, from infancy to late adulthood.
Physical Development
Physical processes, also known as maturation, encompass the biological changes that occur across an individual's life. These changes begin with genetic inheritance and continue through various stages, including growth in height and weight,...
1.4K
Language Development01:22

Language Development

1.0K
Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
1.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Neurodevelopmental and Behavioral Outcomes of Very Low Birth Weight Children: A Call for Early Intervention.

Indian pediatrics·2026
Same author

Disability inclusion for early childhood care and development: the twin-track approach.

Disability and health journal·2026
Same author

Childhood Autism Tool - Trivandrum (CAT-T) - Development and Validation: Author's Reply.

Indian journal of pediatrics·2025
Same author

Predictors of mortality among critically ill SARS-CoV-2 infected patients-a retrospective cohort study, Kerala, India.

Frontiers in public health·2025
Same author

Cerebral palsy in young children: bridging the global data gap.

The Lancet. Global health·2025
Same author

Childhood Autism Tool - Trivandrum (CAT-T) - Development and Validation.

Indian journal of pediatrics·2025

Related Experiment Video

Updated: Mar 23, 2026

Measuring the Functional Abilities of Children Aged 3-6 Years Old with Observational Methods and Computer Tools
11:29

Measuring the Functional Abilities of Children Aged 3-6 Years Old with Observational Methods and Computer Tools

Published on: June 20, 2020

9.9K

Language Evaluation Scale Trivandrum (LEST 3-6 years) Development and Validation.

M K C Nair1, G S Nair Harikumaran, Babu George

  • 1Child Development Centre and #Clinical Epidemiology Resource and Training Centre, Medical College Campus, Thiruvananthapuram, India. cdcmkc@gmail.com.

Indian Pediatrics
|April 1, 2016
PubMed
Summary
This summary is machine-generated.

The Language Evaluation Scale Trivandrum (LEST) for 3-6 year olds is a validated community screening tool. It accurately identifies language delays in young children, proving effective for early detection.

More Related Videos

Measuring Statistical Learning Across Modalities and Domains in School-Aged Children Via an Online Platform and Neuroimaging Techniques
08:05

Measuring Statistical Learning Across Modalities and Domains in School-Aged Children Via an Online Platform and Neuroimaging Techniques

Published on: June 30, 2020

8.2K
Portable Intermodal Preferential Looking IPL: Investigating Language Comprehension in Typically Developing Toddlers and Young Children with Autism
10:11

Portable Intermodal Preferential Looking IPL: Investigating Language Comprehension in Typically Developing Toddlers and Young Children with Autism

Published on: December 14, 2012

19.2K

Related Experiment Videos

Last Updated: Mar 23, 2026

Measuring the Functional Abilities of Children Aged 3-6 Years Old with Observational Methods and Computer Tools
11:29

Measuring the Functional Abilities of Children Aged 3-6 Years Old with Observational Methods and Computer Tools

Published on: June 20, 2020

9.9K
Measuring Statistical Learning Across Modalities and Domains in School-Aged Children Via an Online Platform and Neuroimaging Techniques
08:05

Measuring Statistical Learning Across Modalities and Domains in School-Aged Children Via an Online Platform and Neuroimaging Techniques

Published on: June 30, 2020

8.2K
Portable Intermodal Preferential Looking IPL: Investigating Language Comprehension in Typically Developing Toddlers and Young Children with Autism
10:11

Portable Intermodal Preferential Looking IPL: Investigating Language Comprehension in Typically Developing Toddlers and Young Children with Autism

Published on: December 14, 2012

19.2K

Area of Science:

  • Child Development
  • Speech-Language Pathology
  • Pediatric Screening

Background:

  • Early identification of language delays is crucial for intervention.
  • Existing screening tools may have limitations in community settings.
  • The Language Evaluation Scale Trivandrum (LEST) was developed for preschool-aged children.

Purpose of the Study:

  • To validate the Language Evaluation Scale Trivandrum (LEST) for children aged 3-6 years.
  • To assess the diagnostic accuracy of LEST in a community sample.
  • To establish LEST as a reliable screening tool for language development.

Main Methods:

  • The 31-item LEST (3-6 years) was administered to a community sample of 606 children aged 3-6 years.
  • Validation was performed against the extended Rapid Estimate of Expressive Language Scale (REELS).
  • Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy were calculated for one-item and two-item delay criteria.

Main Results:

  • LEST demonstrated high sensitivity (81%) and negative predictive value (98%) for a one-item delay.
  • LEST showed high specificity (94%) and accuracy (92%) for a two-item delay.
  • The tool proved effective in identifying language delays within the target age group.

Conclusions:

  • The Language Evaluation Scale Trivandrum (LEST) is a simple and valid screening tool for language development in children aged 3-6 years.
  • LEST is suitable for use in community-based settings for early identification of language delays.
  • The study supports the use of LEST for effective language screening in preschool populations.