The Dimensional Apathy Scale (DAS) may be good for measuring apathy in people with multiple sclerosis (MS) because it is valid and reliable, with accuracy similar to the Apathy Evaluation Scale (AES), but less affected by disability level (DL).
Why this matters
Apathy is associated with poor treatment compliance and progressive cognitive decline in people with MS.
The AES is reliable and valid for assessing apathy in people with MS but may be affected by DL.
Better assessments are needed for early and accurate identification of apathy to improve clinical outcomes in MS.