english: Each period rh was chosen for each subject randomly from the set of integers {1, 2, ..., 20} with a uniform distribution, U was chosen from the set {3, 6} in the first study and {3, 6, 10, 15} in a second study, and was fixed for the first two series, e.g., U = 3, and then changed to a new value for the second two
non_english: wewe ↑ wewe ↖ wewe ↗ wewe → wewe ↓ wewe ↩ wewe ↪ wewe ↬ wewe ↫ wewe ↪ wewe ↩ wewe ↲ wewe ↷ wewe ↳ wewe ↶ wewe ↴ and wewe ↺ deserve to meet your idol. ♥ ilitumwa zaidi ya mwaka mmoja uliopita