Reliability of an assessment used in formal accommodation services: Implications for adults with an intellectual disability

Abstract

Background The Revised Irrabeena Core Skills Assessment (RICSA) is used in formal accommodation services and evaluates the functional skills of adults with an intellectual disability. The assessment is used to inform training for skills development. This study focused on establishing evidence for interrater reliability of the RICSA.

Method The RICSA was completed by 101 staff members on 30 adults living in group homes. Interviews were conducted with 9 staff members in order to identify potential issues that may affect the reliability of the assessment. Interrater reliability was analysed using the intraclass correlation coefficient (ICC), and thematic analysis was conducted from the interview data.

Results The ICC values ranged from .63 to .73 across the 5 main domains of the RICSA.

Conclusions The agreement found may be regarded as unsatisfactory given that the use of the RICSA is to inform skills training for people with an intellectual disability.

Keywords:

• Accommodation services
• assessment tool
• community living
• functional skills
• intellectual disability
• reliability

Author note

This research was not funded and there are no conflicts of interest involved in this study.

Acknowledgements

Many thanks to the Disability Services Commission, Perth, Western Australia, for their assistance with this study.

Notes

*This manuscript was accepted under the Guest Editorship of Roger Stancliffe.