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Updated: Sep 22, 2025

Measuring the Functional Abilities of Children Aged 3-6 Years Old with Observational Methods and Computer Tools
Published on: June 20, 2020
Development and validation of a functional screening tool for adults with intellectual disabilities
Nophar Ben-David1,2, Meir Lotan3, Daniel Sender Moran1
1Health Administration Department, Health Sciences Faculty, University of Ariel, Ariel, Israel.
Background:
The dynamic nature of intellectual disability necessitates repeated screening.
Method:
The functional screening tool (FST-ID) for individuals with intellectual disabilities was carefully constructed.
Results:
The FST-ID General Adaptive Composite score (GAC) runs between 0 and 68 points. Criterion validity-high-positive correlations were found between FST-ID and ABAS-II (Gold standard), and between the severity of the intellectual disability and the FST-ID (r = 0.78, p < .001). The scale holds high-internal consistency and intra- and inter-rater reliability values. The cut-off point between mild and moderate disability is 50.4 (Sensitivity: 87%, Specificity 86%, p < .001) and 29.4 between moderate to severe-profound (Sensitivity: 96%, Specificity 94%, p < .001).
Conclusions:
The FST-ID presents high-psychometric properties and requires less than 5 min to complete. Using this tool may support efficient screening practices and improved supports for adults with intellectual disability.
Related Concept Videos
Intellectual Disability
Wechsler's Contribution to Measures of Intelligence

