Volume 5 (1963) Issue 3 Pages 137-141
33 rats were given runway training under 23 hr food deprivation. Both total number of trials for 5 acquisition days (Nt=20) and total amount of reinforcement (Rt=40) given over the Nt were kept constant for 2 partial reinforcement groups (50 and 75) and 1 continuous group (100), while total number of reinforced trials (Nr) was variable (10 in Group 50, 15 in Group 75, and 20 in Group 100) under partial reinforcement schedules. 3 extinction days followed. Reciprocal latency and total running time for both acquisition and extinction yielded insignificant differences among groups, namely, Nr did not primarily affect both acquisition and extinction, while did significant differences among days. The interaction between groups and days was insignificant for both acquisition and extinction in each measure. Some interpretation of the data with regard to Nr, Nt and Rt was made.