Excellent inter‐rater, intra‐rater, and telephone‐administered reliability of the ALSFRS‐R in a multicenter clinical trial

Petra Kaufmann Department of Neurology, The Eleanor and Lou Gehrig MDA/ALS Research Center, College of Physicians and SurgeonsCorrespondence[email protected]

Gilbero Levy Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY

Jacquelina Montes Department of Neurology, The Eleanor and Lou Gehrig MDA/ALS Research Center, College of Physicians and Surgeons

Richaro Buchsbaum Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY

Alexandra I. Barsdorf Department of Neurology, The Eleanor and Lou Gehrig MDA/ALS Research Center, College of Physicians and Surgeons

Vanessa Battista Department of Neurology, The Eleanor and Lou Gehrig MDA/ALS Research Center, College of Physicians and Surgeons

Rachel Arbing Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY

Paul H. Gordon Department of Neurology, The Eleanor and Lou Gehrig MDA/ALS Research Center, College of Physicians and Surgeons

Hiroshi Mitsumoto Department of Neurology, The Eleanor and Lou Gehrig MDA/ALS Research Center, College of Physicians and Surgeons

Brvce Levin Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY

John L. P. Thompson Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY

for the QALS study group