Evaluating the suitability of the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) computerized neurocognitive battery for short-term, serial assessment of neurocognitive functioning.BACKGROUND
 The Immediate Post-Concussion Assessment for Cognitive Testing (ImPACT) is a commonly used CNT with well-documented test-retest reliability in healthy samples for intervals ranging from one month to two years.  However, previous research has not explored use of ImPACT for other serial testing methodologies such as immediately before and after an experimental trial/intervention where administration on the same day may be necessary.


 To examine the suitability of ImPACT for short-term, serial assessment of neurocognitive functioning.


 Forty-two healthy, college-aged individuals completed ImPACT twice, with a one-hour break between assessments.  No significant increases in mean ImPACT composite or symptom scores were observed between assessments.  The ICCs for ImPACT composite and factor scores across the one-hour administration were consistent with previous studies.  These statistical metrics suggest that ImPACT has sufficient reliability when repeating administration within one-hour.
ImPACT
Computerized Neurocognitive Testing (CNT) is frequently used for serial assessment of athletes following concussion. 
Computerized Neurocognitive Testing (CNT)
The Immediate Post-Concussion Assessment for Cognitive Testing (ImPACT) is a commonly used CNT with well-documented test-retest reliability in healthy samples for intervals ranging from one month to two years. 
the Immediate Post-Concussion Assessment for Cognitive Testing (ImPACT)