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A Novel Digital Digit-Symbol Substitution Test Measuring Processing Speed in Adults At Risk for Alzheimer Disease: Validation Study

A Novel Digital Digit-Symbol Substitution Test Measuring Processing Speed in Adults At Risk for Alzheimer Disease: Validation Study

The participant would press the “M” key on their keyboard in this case. DDSST: digital digit-symbol substitution test. All statistical analyses were performed utilizing the Analyse-It extension for Microsoft Excel. The linear relationship between the RBANS-C and DDSST raw scores was calculated using a Pearson product-moment correlation.

Anthony Campitelli, Sally Paulson, Josh L Gills, Megan D Jones, Erica N Madero, Jennifer Myers, Jordan M Glenn, Michelle Gray

JMIR Aging 2023;6:e36663

Intervention for a Digital, Cognitive, Multi-Domain Alzheimer Risk Velocity Study: Protocol for a Randomized Controlled Trial

Intervention for a Digital, Cognitive, Multi-Domain Alzheimer Risk Velocity Study: Protocol for a Randomized Controlled Trial

For the assessment of usual walk time, the participants will be instructed to walk at their usual pace for 4 m. Scores will range from 0 to 4 based on the time to completion [25,26]. The chair stand test will be performed in a standard straight-back chair (seat height=0.43 m). The participants will be instructed to sit with both feet on the floor with arms crossed over their chest. The time to complete 5 chair stands will be recorded, with scores ranging from 0 to 4.

Michelle Gray, Erica N Madero, Joshua L Gills, Sally Paulson, Megan D Jones, Anthony Campitelli, Jennifer Myers, Nicholas T Bott, Jordan M Glenn

JMIR Res Protoc 2022;11(2):e31841