Inter-rater reliability of the Hayes Ability Screening Index in a sample of Australian prisoners
© 2015 MENCAP and International Association of the Scientific Study of Intellectual and Developmental Disabilities and John Wiley & Sons Ltd. Background: Reliable ascertainment of intellectual disability (ID) is important to identify those with special needs, in order for those needs to be met i...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Blackwell Publishing Ltd
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/33983 |
| _version_ | 1848754096783228928 |
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| author | Young, Jesse van Dooren, K. Lennox, N. Butler, Tony Kinner, S. |
| author_facet | Young, Jesse van Dooren, K. Lennox, N. Butler, Tony Kinner, S. |
| author_sort | Young, Jesse |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2015 MENCAP and International Association of the Scientific Study of Intellectual and Developmental Disabilities and John Wiley & Sons Ltd. Background: Reliable ascertainment of intellectual disability (ID) is important to identify those with special needs, in order for those needs to be met in the criminal justice system. Although the Hayes Ability Screening Index (HASI) is valid and widely used for the identification of possible ID, the risk of inter-rater bias between researchers when scoring the HASI has not yet been established. The current paper estimates the inter-rater reliability of the HASI in a sample of Indigenous and non-Indigenous prisoners in Western Australia. Methods: We estimated intra-class correlation coefficients (ICC) for the consistency of agreement among three blinded raters using a two-way random-effects model assessing the inter-rater agreement of the HASI. Kappa was also estimated for the dichotomous HASI screening threshold outcome between the raters. Results: The HASI exhibited very good within-subject consistency of agreement for Section B (ICC=0.95; 95%CI:0.94-0.96), Section C (ICC=0.97; 95%CI: 0.96-0.98) and Section D (ICC=0.90; 95%CI: 0.87-0.92) subscales and for the total scaled score (ICC=0.97; 95%CI: 0.96-0.98). The inter-rater reliability of the dichotomous adult ID screening threshold (<85) was also very good (Kappa=0.95). Conclusions: The current study provides new evidence that the HASI has a low risk of bias from between-rater scoring and can be reliably scored by both non-clinicians and clinicians with little training, when administered in prison settings. Pre-scoring training should focus on the more subjective 'clock-drawing' section, in order to maximise inter-rater reliability. |
| first_indexed | 2025-11-14T08:34:59Z |
| format | Journal Article |
| id | curtin-20.500.11937-33983 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:34:59Z |
| publishDate | 2015 |
| publisher | Blackwell Publishing Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-339832017-09-13T15:08:24Z Inter-rater reliability of the Hayes Ability Screening Index in a sample of Australian prisoners Young, Jesse van Dooren, K. Lennox, N. Butler, Tony Kinner, S. © 2015 MENCAP and International Association of the Scientific Study of Intellectual and Developmental Disabilities and John Wiley & Sons Ltd. Background: Reliable ascertainment of intellectual disability (ID) is important to identify those with special needs, in order for those needs to be met in the criminal justice system. Although the Hayes Ability Screening Index (HASI) is valid and widely used for the identification of possible ID, the risk of inter-rater bias between researchers when scoring the HASI has not yet been established. The current paper estimates the inter-rater reliability of the HASI in a sample of Indigenous and non-Indigenous prisoners in Western Australia. Methods: We estimated intra-class correlation coefficients (ICC) for the consistency of agreement among three blinded raters using a two-way random-effects model assessing the inter-rater agreement of the HASI. Kappa was also estimated for the dichotomous HASI screening threshold outcome between the raters. Results: The HASI exhibited very good within-subject consistency of agreement for Section B (ICC=0.95; 95%CI:0.94-0.96), Section C (ICC=0.97; 95%CI: 0.96-0.98) and Section D (ICC=0.90; 95%CI: 0.87-0.92) subscales and for the total scaled score (ICC=0.97; 95%CI: 0.96-0.98). The inter-rater reliability of the dichotomous adult ID screening threshold (<85) was also very good (Kappa=0.95). Conclusions: The current study provides new evidence that the HASI has a low risk of bias from between-rater scoring and can be reliably scored by both non-clinicians and clinicians with little training, when administered in prison settings. Pre-scoring training should focus on the more subjective 'clock-drawing' section, in order to maximise inter-rater reliability. 2015 Journal Article http://hdl.handle.net/20.500.11937/33983 10.1111/jir.12198 Blackwell Publishing Ltd restricted |
| spellingShingle | Young, Jesse van Dooren, K. Lennox, N. Butler, Tony Kinner, S. Inter-rater reliability of the Hayes Ability Screening Index in a sample of Australian prisoners |
| title | Inter-rater reliability of the Hayes Ability Screening Index in a sample of Australian prisoners |
| title_full | Inter-rater reliability of the Hayes Ability Screening Index in a sample of Australian prisoners |
| title_fullStr | Inter-rater reliability of the Hayes Ability Screening Index in a sample of Australian prisoners |
| title_full_unstemmed | Inter-rater reliability of the Hayes Ability Screening Index in a sample of Australian prisoners |
| title_short | Inter-rater reliability of the Hayes Ability Screening Index in a sample of Australian prisoners |
| title_sort | inter-rater reliability of the hayes ability screening index in a sample of australian prisoners |
| url | http://hdl.handle.net/20.500.11937/33983 |