Table 3

Specific assessments contributing to each domain score of Immediate Post-Concussion Assessment Tool

Verbal memory composite scoreAverage of these scores:

  • Word Memory total per cent correct (immediate+delay)/2

  • Symbol Match (hidden symbols)/9×100

  • Three letters. Total letters correct

Visual memory composite scoreAverage of the following scores:

  • X’s and 0’s-total correct (interference) total/4

  • Design memory-total per cent correct (immediate+delay)/2

Reaction time composite scoreAverage of these scores:

  • X’s and 0’s average correct reaction time (RT)

  • Symbol Match average correct RT/3

  • Colour Match average correct RT

Processing speed composite scoreAverage of the following scores:

  • X’s and 0’s-total correct (interference) total/4

  • Three letters-average counted correctly×3

Impulse control composite scoreSum of the following scores:

  • X’s and 0’s-total incorrect–interference

  • Color match total commissions