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References
1.
Brogden
W. J.
The experimenter as a factor in animal conditioning . Psychol. Rep. , 1962 , 11 , 239 –242 .
2.
Razran
G.
Recent Soviet phyletic comparisons of classical and operant conditioning: experimental designs . J. comp. physiol. Psychol. , 1961 , 54 , 357 –365 .