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

You might also read

Related Articles

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

Sort by
Same author

Inflammation Associated With Obesity, Aging, and Amyloid Burden in Adults With Down Syndrome.

Obesity (Silver Spring, Md.)·2026
Same author

Circadian Rest-Activity Rhythms, Cognition, and Alzheimer Disease Dementia in Adults With Down Syndrome.

Neurology·2026
Same author

Radiologic, Histologic and Scanning Electron Microscopic Characterization of the Peritoneal Reflection in Crohn's Disease.

Clinical anatomy (New York, N.Y.)·2026
Same author

Anaesthesia for caesarean delivery in patients with placenta accreta spectrum: a retrospective cohort study in two referral centres in Ireland (2017-2024).

International journal of obstetric anesthesia·2026
Same author

Objective measurement of cancer-related fatigue.

Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer·2025
Same author

Resistance and resilience to Alzheimer's disease in Down syndrome.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2025
Same journal

Preliminary Testing of the English Version of the Adolescent Screener for Intelligence and Learning Disabilities (SCIL) Among Adolescents in Nigeria.

Journal of intellectual disability research : JIDR·2026
Same journal

Predictors of Mental Healthcare Need and Utilisation Among Asian American Adolescents With Intellectual and Developmental Disabilities.

Journal of intellectual disability research : JIDR·2026
Same journal

Repetitive Behaviours in Williams Syndrome: A Cross-Cultural Comparison Between the United Kingdom and Japan.

Journal of intellectual disability research : JIDR·2026
Same journal

Validation of the Q87.11 ICD Code for Prader-Willi Syndrome.

Journal of intellectual disability research : JIDR·2026
Same journal

Assessing the Diagnostic Performance of Triglyceride-Glucose-Based Indices for Early Detection of Metabolic Syndrome in Paediatric Down Syndrome.

Journal of intellectual disability research : JIDR·2026
Same journal

Cognitive and Demographic Associations of Dementia-Related Behavioural Changes in Adults With an Intellectual Disability: Findings From the IDS-TILDA Study.

Journal of intellectual disability research : JIDR·2026
See all related articles

Related Experiment Video

Updated: Oct 31, 2025

Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers
09:16

Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers

Published on: March 14, 2018

10.4K

Cognitive assessment using the Rapid Assessment for Developmental Disabilities, Second Edition (RADD-2).

C L Hom1, D Walsh1, G Fernandez1

  • 1Department of Psychiatry and Human Behavior, University of California, Irvine, CA, USA.

Journal of Intellectual Disability Research : JIDR
|July 1, 2021
PubMed
Summary
This summary is machine-generated.

The Rapid Assessment of Developmental Disabilities, Second Edition (RADD-2) effectively measures cognitive abilities in individuals with developmental disabilities, even those with challenging behaviors or limited verbal skills. This tool demonstrates strong validity and reliability for assessing cognitive function in diverse populations.

Keywords:
assessmentcognitionintellectual disabilityintelligencepsychiatric disorders

More Related Videos

SECONDs Administration Guidelines: A Fast Tool to Assess Consciousness in Brain-injured Patients
11:05

SECONDs Administration Guidelines: A Fast Tool to Assess Consciousness in Brain-injured Patients

Published on: February 6, 2021

15.8K
Author Spotlight: Validation of SICOLE-R for Assessing Cognitive and Reading Skills in Spanish-Speaking Children and Its Role in Personalized Education
09:00

Author Spotlight: Validation of SICOLE-R for Assessing Cognitive and Reading Skills in Spanish-Speaking Children and Its Role in Personalized Education

Published on: August 16, 2024

988

Related Experiment Videos

Last Updated: Oct 31, 2025

Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers
09:16

Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers

Published on: March 14, 2018

10.4K
SECONDs Administration Guidelines: A Fast Tool to Assess Consciousness in Brain-injured Patients
11:05

SECONDs Administration Guidelines: A Fast Tool to Assess Consciousness in Brain-injured Patients

Published on: February 6, 2021

15.8K
Author Spotlight: Validation of SICOLE-R for Assessing Cognitive and Reading Skills in Spanish-Speaking Children and Its Role in Personalized Education
09:00

Author Spotlight: Validation of SICOLE-R for Assessing Cognitive and Reading Skills in Spanish-Speaking Children and Its Role in Personalized Education

Published on: August 16, 2024

988

Area of Science:

  • Neuroscience
  • Psychology
  • Developmental Disabilities Research

Background:

  • Assessing cognitive abilities in individuals with developmental disabilities (DD) is challenging due to severe impairments and maladaptive behaviors.
  • The Rapid Assessment of Developmental Disabilities, Second Edition (RADD-2) was developed to address these assessment difficulties.
  • This study focuses on validating the RADD-2 for individuals with DD, including those with behavioral/psychiatric conditions and limited verbal skills.

Purpose of the Study:

  • To demonstrate the psychometric properties of the RADD-2 in individuals with developmental disabilities.
  • To evaluate the RADD-2's effectiveness in populations with challenging behavioral and psychiatric conditions.
  • To assess the RADD-2's utility for individuals with limited verbal skills.

Main Methods:

  • Evaluated 193 children and adults with DD and complex medical, behavioral, or psychiatric issues.
  • Utilized the RADD-2, RADD-1, Kaufmann Brief Intelligence Test-2, and Scales of Independent Behaviour-Revised.
  • Assessed medication side effects and behaviors using the Aberrant Behavior Checklist.

Main Results:

  • The RADD-2 showed no floor or ceiling effects, indicating a wide range of assessable abilities.
  • Strong concurrent validity with other cognitive tests and discriminant validity from adaptive behavior and medication side effects were observed.
  • RADD-2 scores accurately differentiated intellectual functioning levels and were not negatively impacted by age, sex, or psychiatric conditions, with epilepsy being the only medical condition associated with lower scores.

Conclusions:

  • The RADD-2 reliably quantifies cognitive abilities in individuals with DD, including those with communication difficulties, behavioral challenges, or medication side effects.
  • This brief cognitive battery is suitable for measuring changes related to interventions or disease progression.
  • The RADD-2 provides a valuable tool for assessing cognitive function in complex populations with developmental disabilities.