Related Experiment Video
Updated: Apr 29, 2026

Measuring the Functional Abilities of Children Aged 3-6 Years Old with Observational Methods and Computer Tools
Published on: June 20, 2020
Unreliable block span reveals simulated intellectual disability on the stanford-binet intelligence scales-fifth
Alyse Barker1, Mandi Wilkes Musso, Glenn N Jones
1a Psychology Department , Louisiana State University , Baton Rouge , Louisiana.
Abstract:
Previously developed validity measures are largely lacking in their ability to accurately distinguish malingerers from individuals with genuine intellectual disabilities (ID). The purpose of the present study was to develop a validity index for the Stanford-Binet Intelligence Scales-Fifth Edition (SB-5) aimed at detecting malingered ID. Fifty-four college students were instructed to feign impairment consistent with mental retardation while completing the SB-5. Simulated malingerers performed significantly poorer on the Block Span task of the SB-5 than did individuals with genuine impairment. A Block Span Validity Index (BSVI) cutoff score of less than 10 showed perfect specificity by correctly identifying all persons with true ID and demonstrated 52% sensitivity in identifying persons feigning impairment. For the detection of malingered ID, the BSVI yielded favorable results, although more research is needed to validate the BSVI using a known-groups study design.
More Related Videos
14:43Universal Screening for Prevention of Reading, Writing, and Math Disabilities in Spanish
Published on: July 18, 2020
09:00Author 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
Related Concept Videos
Binet's Contribution to Measures of Intelligence
Wechsler's Contribution to Measures of Intelligence
Intellectual Disability
Triarchic Theory of Intelligence
Reliability and Validity
Biological Influences on Intelligence