Health System, Community-Based, or Usual Dementia Care for Persons With Dementia and Caregivers: The D-CARE Randomized Clinical Trial.

Importance: The effectiveness of different approaches to dementia care is unknown.

Objective: To determine the effectiveness of health system-based, community-based dementia care, and usual care for persons with dementia and for caregiver outcomes.

Design, Setting, And Participants: Randomized clinical trial of community-dwelling persons living with dementia and their caregivers conducted at 4 sites in the US (enrollment June 2019-January 2023; final follow-up, August 2023).

Using a novel Reliable Letter-Number Span from the Wechsler Letter-Number Sequencing as an embedded validity indicator in baseline concussion testing for youth athletes.

Few performance validity tests exist for youth undergoing baseline testing for the management of sport-related concussion. This study provides an initial validation of a reliable span calculation from the Wechsler Intelligence Scale for Children-Fourth Edition Letter-Number Sequencing (LNS) subtest as a performance validity indicator for youth baseline testing (Reliable Letter-Number Span; RLNS). Youth athletes ( = 173) underwent baseline concussion testing for the management of sport-related concussion.