THE DISTRIBUTION OF OBSERVING RESPONSES IN A MIXED FI-FR SCHEDULE.
D000818:Animals; D001288:Attention; D001717:Birds; D010856:Columbidae; D004193:Discrimination Learning; D005502:Food; D012054:Reinforcement, Psychology; D012106:Research; D012919:Social Behavior
ATTENTION; BIRDS; DISCRIMINATION LEARNING; EXPERIMENTAL LAB STUDY; REINFORCEMENT (PSYCHOLOGY)