R. W. Powell

发表

The effect of small sequential changes in fixed-ratio size upon the post-reinforcement pause.

R. W. Powell, 1968, Journal of the experimental analysis of behavior.

The effect of reinforcement magnitude upon responding under fixed-ratio schedules.

R. W. Powell, Robert W. Powell, 1969, Journal of the experimental analysis of behavior.

Grades, learning, and student evaluation of instruction

Robert W. Powell, R. W. Powell, 1977 .

Operant responding in the common cro'w

R. W. Powell, 1973 .

Two-way shuttle avoidance in wild and domesticated mice

R. W. Powell, 1969 .

The Whole is Less Than the Sum of Its Parts.

Robert W. Powell, R. W. Powell, 1974 .

The effect of punishment shock intensity upon responding under multiple schedules.

R. W. Powell, 1970, Journal of the experimental analysis of behavior.

A Comparison of the Charting, Line Intercept, and Line Point Methods of Sampling Shrub Types of Vegetation

Harold F. Heady, Robert W. Powell, R. W. Powell, 1959 .

Investigating Saccharomyces cerevisiae alkene reductase OYE 3 by substrate profiling, X-ray crystallography and computational methods

A. Roitberg, R. W. Powell, E. Brenna, 2018 .

Opposite Enantioselectivity in the Bioreduction of (Z)-β-Aryl-β-cyanoacrylates Mediated by the Tryptophan 116 Mutants of Old Yellow Enzyme 1: Synthetic Approach to (R)- and (S)-β-Aryl-γ-lactams

R. W. Powell, F. Parmeggiani, D. Monti, 2015 .

Responding under single vs. multiple schedules

R. W. Powell, 1980 .

Crows learn not to respond under response-independent reinforcement

R. W. Powell, W. Kelly, 1979 .

Behavioral contrast and induction in the crow

Linda J. Palm, R. W. Powell, L. Palm, 1978 .

A comparison of signaled vs. unsignaled free-operant avoidance in Mongolian gerbils and domesticated rats

Linda J. Palm, R. W. Powell, L. Palm, 1978 .

Analysis of warm-up effects during avoidance in the Mongolian gerbil

Linda J. Palm, R. W. Powell, L. Palm, 1977 .

A comparison of signaled vs. unsignaled free-operant avoidance in wild and domesticated rats

R. W. Powell, 1976 .

Comparative studies of the preference for free vs response-produced reinforcers

R. W. Powell, 1974 .

Free-operant (Sidman) avoidance in reciprocally cross-fostered wild and domesticated rats

R. W. Powell, 1973 .

Acquisition of free-operant (Sidman) avoidance in Mongolian gerbils (Meriones unguiculatus) and albino rats

R. W. Powell, 1971 .

COMPARISON OF PROPOFOL AND THIOPENTAL ANESTHESIA IN OUTPATIENT SURGERYSPEED OF RECOVERY

R. W. Powell, Y. Sung, T. Tillette, 1988 .

Further evidence of interaction between deprivation effects and stimulus control of responding: III

Linda J. Palm, R. W. Powell, 1977 .

Visual factors in observational learning with rats

Robert W. Powell, R. W. Powell, R. Burns, 1970 .

Visual factors in observationallearning with rats

R. W. Powell, R. Burns, 1970 .

The Pulse-to-Cycle Fraction as a Determinant of Critical Flicker Fusion in the Pigeon

R. W. Powell, 1967 .

A method for the objective study of tool-using behavior.

R W Powell, W Kelly, R. W. Powell, 1975, Journal of the experimental analysis of behavior.

Running-wheel activity and avoidance in the mongolian gerbil.

R. W. Powell, S. Peck, 1969, Journal of the experimental analysis of behavior.

Analysis of Instinctive Drift, II: The Development and Control of Species-Specific Responses in Appetitive Conditioning

R. W. Powell, Michael Curley, 1984 .

Instinctive drift in nondomesticated rodents

R. W. Powell, Michael Curley, 1976 .

Response-independent reinforcement in the crow: Failure to obtain autoshaping or positive automaintenance

R. W. Powell, D. Santisteban, W. Kelly, 1975 .

Critical-Flicker-Fusion Thresholds as a Function of Very Small Pulse-to-Cycle Fractions

Robert W. Powell, James C. Smith, R. W. Powell, 1968 .

Free-operant (Sidman) avoidance in field-raised and laboratory-raised wild rats.

R. W. Powell, 1971 .

Comparison of differential reinforcement of low rates (DRL) performance in pigeons (Columba livia) and crows (Corvus brachyrhynchos).

R. W. Powell, 1974, Journal of comparative and physiological psychology.

The effect of deprivation upon fixed-interval responding: A two-state analysis

R. W. Powell, 1972 .

The effect of deprivation upon fixed ratio responding

R. W. Powell, 1969 .

A comparison of escape and avoidance conditioning in wild and domesticated rats.

R. W. Powell, G. Morris, 1968, Journal of the experimental analysis of behavior.

The effect of shock intensity upon responding under a multiple-avoidance schedule.

R. W. Powell, 1970, Journal of the experimental analysis of behavior.

Observational learning vs shaping: A replication

Robert W. Powell, R. W. Powell, 1968 .

Some effects of punishment shock intensity upon discriminative responding.

R. W. Powell, 1971, Journal of the experimental analysis of behavior.

Avoidance and Escape Conditioning in Lizards

R. W. Powell, 1967, Psychological reports.

Effects of Warning Signal Duration on Free-Operant Avoidance

R. W. Powell, L. Schonfeld, 1981 .

Analysis of warm-up effects during avoidance in wild and domesticated rodents.

R. W. Powell, 1972, Journal of comparative and physiological psychology.

Responding under positive and negative response contingencies in pigeons and crows.

R. W. Powell, W. Kelly, 1976, Journal of the experimental analysis of behavior.

Shaping, auto-shaping and observational learning with rats

Robert W. Powell, R. W. Powell, Douglas Saunders, 1968 .

Probability of Reinforcement and Fixed-Ratio Responding: A Model

R. W. Powell, 1970 .

Effects of stimulus control and deprivation upon discriminative responding.

R. W. Powell, 1973, Journal of the experimental analysis of behavior.

Continuous punishment of free-operant avoidance in the rat.

R. W. Powell, G. Morris, 1969, Journal of the experimental analysis of behavior.

Some effects of response-independent shocks after unsignaled avoidance conditioning in rats

R. W. Powell, 1972 .

Effects of deprivation and prefeeding on variable interval responding

R. W. Powell, 1971 .

Responding under variable-interval, variable-time, and extinction schedules in pigeons and crows

Linda J. Palm, R. W. Powell, 1982 .

Tool use in captive crows

William Kelly, Robert W. Powell, R. W. Powell, 1977 .

Responding under basic schedules of reinforcement in the crow.

R. W. Powell, 1972 .

Operant responding in the common crow (Corvus brachyrhynchos)

R. W. Powell, 1973 .