Measuring reliable change in cognition using the Edinburgh Cognitive and Behavioural ALS Screen (ECAS).
Christopher J CrockfordJudith NewtonKatie LonerganCaoifa MaddenIain MaysMeabhdh O'SullivanEmmet CostelloMarta Pinto-GrauAlice VajdaMark HeverinNiall PenderAmmar Al ChalabiOrla HardimanSharon AbrahamsPublished in: Amyotrophic lateral sclerosis & frontotemporal degeneration (2017)
The alternate forms of the ECAS possess excellent test-retest reliability in a healthy control sample, with no significant practice effects. The use of conservative RCI scores is recommended. Therefore, a change of ≥8, ≥4, and ≥9 for ALS Specific, ALS Non-Specific, and ECAS Total score is required for reliable change.