Social and Behavioral Sciences Commons^™

An Analysis Of The Effects Of Delay Of Reinforcement And Momentary Probabilities Of Reinforcement On Interval Schedule Performance, Charles A. Lund

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In two experiments pigeons were exposed to VI and FI schedules and schedules approximating both VI and FI schedules. In experiment I, the probabilities of the VI and FI components in a Mixed FI VI schedule were manipulated to create schedule contingencies approximating simple VI or FI. In experiment II, the minimum and maximum inter-reinforcement intervals were manipulated to create schedule contingencies approximating simple VI or FI. The major finding of both of these experiments was that maximal control by the dimension of time occurred as FI contingencies were approximated. Control by any one temporal value in experiment I depended …