ImPACT Version 4

• Intended Use

• Overview
• What Is a Concussion?
• When Is a Head Injury More Than a Concussion?
• What Symptoms Are Often Associated with a Concussion?
• What Is Neurocognitive Assessment and Why Use It?
• Rationale for the Development of ImPACT Version 4

• What is ImPACT Version 4?
• Ages
• Qualifications for Administration and Interpretation
• Administration Time
• Technical Requirements
• Test Environment
• General Guidelines for Test Administration
• Order of Administration
• Instructions for Starting a New Test or Reviewing Test Records from the Customer Center
• Neurocognitive Test Modules Descriptions, Administration Instructions, and Scoring

• Content Development
• Alpha testing of items and development of the test modules from early versions ImPACT
• Description of the Standardization Sample for ImPACT Version 4

• Reliability Data for ImPACT
• Validity, and sensitivity and specificity of ImPACT
• Construct and concurrent validity of ImPACT and ImPACT Version 4
• Summary

• ImPACT Clinical Report
• The Composite Indices
• Post-Concussion Symptoms Scale (PCSS)
• Graphic Display of Neurocognitive Composite and Total Symptom Scores
• Summary

• Appendix A. References