Adaptation Process and Psychometric Properties of the French Version of the Health of the Nation Outcome Scales for People with Learning Disabilities

ABSTRACT Introduction The aim of this study was to adapt the Health of the Nation Outcome Scales for people with Learning Disabilities into French (F-HoNOS-LD) and to examine its validity and reliability. Method Sixty-six adults with intellectual disabilities (ID) admitted to a psychiatric hospital took part in the study. Clinicians used the F-HoNOS-LD and the Aberrant Behavior Checklist (ABC) to test all of them at hospital admission. A subsample (n = 34) was tested with the F-HoNOS-LD a second time at the end of the hospital stay. Results The French version of the instrument showed evidence of convergent validity with the ABC and very good internal consistency. Repeated measures analyses revealed – as expected – a systematic decrease in F-HoNOS-LD scores. Conclusion Results of this study suggest that the F-HoNOS-LD is a reliable and valid instrument to measure clinical outcomes among French-speaking adults with ID.