Table 3.

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

Verbal memory composite score	Average 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 score	Average 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 score	Average 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 score	Average of the following scores: X’s and 0’s-total correct (interference) total/4 Three letters-average counted correctly×3
Impulse control composite score	Sum of the following scores: X’s and 0’s-total incorrect–interference Color match total commissions