Article

OBJECTIVES: To translate and culturally adapt the Acceptance of Chronic Health
Conditions (ACHC) Scale for people with multiple sclerosis into Swedish, and to
analyse the psychometric properties of the Swedish version. SUBJECTS: Ten people
with multiple sclerosis participated in translation and cultural adaptation of
the ACHC Scale; 148 people with multiple sclerosis were included in evaluation of
the psychometric properties of the scale. METHODS:
Translation and cultural
adaptation were carried out through translation and back-translation, by expert
committee evaluation and pre-test with cognitive interviews in people with
multiple sclerosis. The psychometric properties of the Swedish version were
evaluated using Rasch analysis. RESULTS: The Swedish version of the ACHC Scale
was an acceptable equivalent to the original version. Seven of the original 10
items fitted the Rasch model and demonstrated ability to separate between groups.
A 5-item version, including 2 items and 3 super-items, demonstrated better
psychometric properties, but lower ability to separate between groups.
CONCLUSION: The Swedish version of the ACHC Scale with the original 10 items did
not fit the Rasch model. Two solutions, either with 7 items (ACHC-7) or with 2
items and 3 super-items (ACHC-5), demonstrated acceptable psychometric
properties. Use of the ACHC-5 Scale with super-items is recommended, since this
solution adjusts for local dependency among items.

Langue : ANGLAIS