Observation Gender Dosage Alertness 1 "m" "a" 8 2 "m" "a" 12 3 "m" "a" 13 4 "m" "a" 12 5 "m" "b" 6 6 "m" "b" 7 7 "m" "b" 23 8 "m" "b" 14 9 "f" "a" 15 10 "f" "a" 12 11 "f" "a" 22 12 "f" "a" 14 13 "f" "b" 15 14 "f" "b" 12 15 "f" "b" 18 16 "f" "b" 22