TY - JOUR AU - TI - Partial Reinforcement Effects On Vigor and Persistence JF - Psychology of Learning and Motivation DO - 10.1016/s0079-7421(08)60512-5 DA - 1967-01-01 UR - https://www.deepdyve.com/lp/crossref/partial-reinforcement-effects-on-vigor-and-persistence-PUnahxibTt SP - 1 EP - 65 DP - DeepDyve ER -