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A Normative Reference vs. Baseline Testing Compromise for ImPACT: The CARE Consortium Multiple Variable Prediction
Breton M Asken1,2, Zachary M Houck3, Julianne D Schmidt4
1Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, USA. breton.asken@ucsf.edu.
Sports Medicine (Auckland, N.Z.)
|February 9, 2020
Summary
New Concussion Assessment, Research, and Education (CARE) Consortium Multiple Variable Prediction (MVP) norms improve neurocognitive testing for athletes, offering a practical alternative to baseline assessments for diverse populations.
Area of Science:
- Sports Medicine
- Neuroscience
- Cognitive Psychology
Background:
- Computerized neurocognitive testing is standard in concussion management.
- Current debates exist on using normative data versus individual baselines, especially for diverse cognitive profiles.
- Improved normative methods could reduce burdens associated with universal baseline testing.
Purpose of the Study:
- To develop and validate the CARE Consortium Multiple Variable Prediction (MVP) norms for the Immediate Postconcussion Assessment and Cognitive Testing (ImPACT).
Main Methods:
- Regression-based equations were used to develop CARE-MVP norms for ImPACT composite scores.
- Predictor variables included sex, race, medical history (ADHD, LD, prior concussion), and estimated premorbid intellect.
- Norms were validated in independent samples of healthy and concussed collegiate athletes.
Main Results:
- Race and Wechsler Test of Adult Reading (WTAR) scores were key predictors.
- CARE-MVP norms showed negligible differences from observed baseline scores, except for Reaction Time.
- CARE-MVP norms resulted in similar low score rates across subpopulations (ADHD/LD, Black/African American) compared to other methods.
Conclusions:
- CARE-MVP norms are supported for underrepresented groups in traditional samples (e.g., ADHD/LD, Black/African American).
- These norms offer a practical, simpler alternative to baseline testing for collegiate institutions.
- The study provides an automated scoring program for the CARE-MVP norms.
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