Athlete Jane Smith is a 16-year-old high-school student. She took a baseline CRI test in August. At baseline, her scores were all within the average to high-average ranges compared to a healthy high-school normative sample. Approximately 3 months following her baseline test, she collided with another player during a basketball game. She had no history of concussions/head injuries prior to the current injury.

The following symptoms were noted immediately following the injury:

•	Loss of Consciousness, < 60 seconds
•	Mild Headache
•	Moderate Dizziness
•	Mild Nausea

She developed two additional symptoms, vomiting and nervousness, within the 24-hour period following the injury.

On the CRI self-report inventory, she endorsed many ongoing post-concussion symptoms:

•	Headaches, constantly
•	Fatigue, constantly
•	Weakness, constantly
•	Dizziness, frequently
•	Difficulty Concentrating, frequently
•	Sensitivity to Light, frequently
•	Nausea, occasionally
•	Sleep Problems, occasionally
•	Difficulty Remembering Things, occasionally
•	Impaired Vision, occasionally

In addition, as depicted in the graph below, she scored significantly lower (p < .05) than her baseline performance on the Simple and Complex Reaction Time indices. Her performance on the Processing Speed Index was in the borderline range (p < .15) in comparison to her baseline performance.

Click here to view Jane's complete CRI Report (1 day post injury).

Graph Explanation

According to Jane's self-report, all symptoms had resolved. However, her performance on the Simple and Complex Reaction Time indices remained significantly slower (p < .05) than her baseline performance, indicating that she was still quite symptomatic. Her performance on the Processing Speed Index was not significantly below her baseline performance.

Click here to view Jane's complete CRI Report (8 days post injury).

Graph Explanation

Jane denied re-emergence of symptoms or the development of new symptoms, and her cognitive test performance improved. However, although her performance on 2 indices returned to baseline levels, her performance on Complex Reaction Time was still in the borderline range (p < .15).

Click here to view Jane's complete CRI Report (9 days post injury).

Graph Explanation

Jane's scores on all indices were at or above baseline scores after adjusting for practice effects.

Click here to view Jane's complete CRI Report (14 days post injury).

Graph Explanation

By comparing Jane's post-injury test scores to her baseline, then adjusting the scores for practice effects, the CRI successfully monitored her recovery.