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Published on: April 1, 2018
Validation and adaptation of the Norwegian version of Hayes Ability Screening Index for intellectual difficulties in
Erik Søndenaa1, Øyvind Nygård, Jim Aage Nøttestad
1Forensic Department Brøset, Center for Research and Education in Forensic Psychiatry, P.O. 1803 Lade, 7440 Trondheim, Norway. erik.sondenaa@ntnu.no
Background:
Intellectual disabilities (ID) among psychiatric patients have traditionally been neglected. A lack of convenient instruments and competency in ID may have worsened the conditions and treatment availability for these patients.
Aims:
Validation and adaptation of a screening instrument for ID (Hayes Ability Screening Index; HASI) in a psychiatric hospital setting.
Methods:
This is a cross-sectional study of 50 psychiatric patients in two Norwegian psychiatric hospitals comparing results of the HASI with the Wechsler Abbreviated Scale of Intelligence (WASI).
Results:
The HASI correlated well with the standard IQ test used (r= 0.67, P< 0.001). At a stated cut-off score of 85, the HASI had a sensitivity of 100% and specificity of 34%.
Conclusions:
The HASI is a valid and time-saving screening instrument for ID among psychiatric patients. The prescribed cut-off score, however, resulted in a large number of false positives.
Related Concept Videos
Intellectual Disability
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