9 found
Order:
  1.  7
    The Question of Bidirectional Associations in Pigeons’ Learning of Conditional Discrimination Tasks.Ralph W. Richards - 1988 - Bulletin of the Psychonomic Society 26 (6):577-579.
  2.  10
    Performance of the Pigeon on the Ambiguous-Cue Problem.Ralph W. Richards - 1973 - Bulletin of the Psychonomic Society 1 (6):445-447.
  3.  19
    Delayed Reinforcement: Effect of a Brief Signal on Behavior Maintained by a Variable-Ratio Schedule.Ralph W. Richards & Douglas B. Richardson - 1991 - Bulletin of the Psychonomic Society 29 (6):543-546.
  4.  13
    Delayed Reinforcement and Pigeons’ Performance on a One-Key Matching-to-Sample Task.Ralph W. Richards - 1986 - Bulletin of the Psychonomic Society 24 (1):85-87.
  5.  7
    The Absence of Time-Out Responding by Pigeons During Shock-Correlated Stimuli.W. M. Hittesdorf & Ralph W. Richards - 1975 - Bulletin of the Psychonomic Society 5 (1):9-12.
  6.  8
    Noise and Context-Dependent Memory.Paul A. Bell, Susan Hess, Ernie Hill, Shawna Lee Kukas, Ralph W. Richards & David Sargent - 1984 - Bulletin of the Psychonomic Society 22 (2):99-100.
  7.  5
    Reinforcement of Ambiguous-Cue Problem Performance Under Various Across Trial Fixed-Ratio Schedules.Ralph W. Richards - 1973 - Bulletin of the Psychonomic Society 2 (6):362-364.
  8.  6
    Disruption of Fixed-Ratio Performance as a Function of Reinforcement Delay.Marsha A. Bullock & Ralph W. Richards - 1973 - Bulletin of the Psychonomic Society 1 (1):49-52.
  9.  6
    Reinforcement Delay: A Parametric Study of Effects Within a Multiple Schedule.Ralph W. Richards & W. M. Hittesdorf - 1976 - Bulletin of the Psychonomic Society 7 (3):303-305.