Practice sessions and learning effect
All participants completed 4 (screening, practice day 1, practice day 2, and practice day 3) gamified cognitive test game bouts prior to baseline experimental bout. Participants scores increased from screening to experimental baseline for all three gamified cognitive tests (p < 0.01). Gridshot composite scores increased (mean diff. 7311, 95% CI 4955, 9668, p < 0.01) from screening (22844 ± 3931) to experimental baseline (30156 ± 3662) trials. Gridshot composite scores increased with every successive day of practice (p < 0.05), with a final improvement seen from practice day 3 (27568 ± 3468) to experimental baseline (mean diff. 2588, 95% CI 1445, 3731, p < 0.01). Capacity composite scores increased (mean diff. 1755, 95% CI 618, 2893, p < 0.01) from screening (3367 ± 1289) to experimental baseline (5122 ± 2179) trials. Capacity composite score did not increase after practice day 2 (4646 ±2274), as experimental baseline and practice day 2 were not different (mean diff. 476, 95% CI -428, 1381, p = 0.70). Multitracker composite scores increased (mean diff. 6556, 95% CI 1692, 11421, p < 0.01) from screening (40861 ± 7486) to experimental baseline (47417 ± 6116) trials. Multitracker composite score at experimental baseline was not different from practice day 1 (44178 ± 6614, mean diff. 3239, 95% CI -1012, 7490, p = 0.24) or practice day 2 (44333 ± 3610, mean diff. 3084, 95% CI -575, 6742, p = 0.14). However, multitracker composite scores were increased at experimental baseline from practice day 3 (42737 ± 7763, mean diff. 4680, 95% CI 1193, 8167, p < 0.01). To investigate the test-retest reliability of each gamified cognitive test, an intraclass correlation analysis was done for the practice day 3 trials. Gridshot observed an average measure interclass correlation of 0.96. Capacity observed an average measure interclass correlation of 0.71. Multitracker observed an average measure interclass correlation of 0.78.