Hour 1 metrics: Similar to Stage 1, the Hour 1 performance metrics
consisted of the average baseline APS, best APS, and APS improvement
across all levels completed by participants during the entire
hour of training. These metrics were expected to provide a more comprehensive
composite measure of auditory processing speed than the
Stage 1 metrics, as most participants progressed beyond the first stage
of training during the hour, and the one-hour scores were therefore
derived from a broader range of auditory stimuli than were the Stage
1 metrics