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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

Cueing--operant conditioning : mediators of experimenter expectancy?

Moffat, Michael Carter January 1967 (has links)
The psychological experiment is frequently regarded as a situation which allows for complete control over the inputs to the experimental Ss. Closer examination reveals it to be vulnerable to unwanted and unprogrammed experimenter influence, mediated through essentially two modes of communication-- visual-kinesic and auditory-para Iingulstic. This study examines the effect of different types of S to E feedback of information, mediated by verbal and nonverbal channels of communication, upon the E outcome-bias phenomenon. Experimenters who were given an expectancy for certain responses from their Ss, were placed in an experimental situation that permitted or restricted verbal communication, and included correct, reversed, or no feedback of subjects' responses, on a photo-rating task. Ten Es each ran 12 Ss on a photo-rating task in a study purporting to be a research project developing a test of empathy. The Ss were required to examine 20 standardized neutral photographs of faces and to rate each one on the degree of success or failure that the person pictured had been experiencing. The Es had been led to expect a predominance of success responses from their Ss. The principal hypothesis, that E expectancy effects are independent of the type of S to E feedback, was supported: the photo-ratings by Ss showed a significant increase in magnitude as a function of the number of photos rated, irrespective of the type of S to E feedback permitted. The more photos rated, the greater the magnitude of the success rating. This has relevance for the type of process that should be considered as a mediator of E's expectancy. Three alternative processes are discussed in the light of the findings of the present study. The second hypothesis, that greater E bias effects occur in conditions permitting both verbal and nonverbal cues as compared to conditions permitting nonverbal cues alone, was not supported. This suggests that verbal cues do not make a significant contribution to E bias effects during the data collecting phase of the psychological experiment. Implications of the findings of this study and suggestions for future research are discussed. / Arts, Faculty of / Psychology, Department of / Graduate

Effect of changes in bodily set on accuracy of proprioceptive localization

Lawlor, Gerald William, January 1937 (has links)
Issued also as Thesis (Ph. D.)--Columbia University. / Bibliography: p. 48.

Factors related to muscular tension

Henley, Eugene Henry, January 1935 (has links)
Issued also as Thesis (Ph. D.)--Columbia University. / Bibliography: p. 34-36.

The effect of duration of grain presentation on the rate of pigeons' autopecking

Hancock, Robert A., Jr. January 2010 (has links)
Digitized by Kansas Correctional Industries

Trace conditioning of key pecking in pigeons as a function of the interstimulus interval

Hemmendinger, Dennis January 2010 (has links)
Digitized by Kansas Correctional Industries

Single-alternation response-independent learning in the pigeon

Hemmendinger, Patricia C. January 2010 (has links)
Digitized by Kansas Correctional Industries

Heart-rate reaction to rewarding septal and midbrain stimulation in the rat.

Ross, Alan Robert January 1970 (has links)
No description available.

The measurement of emotional reactions researches on the psychogalvanic reflex,

Wechsler, David, January 1925 (has links)
Thesis (Ph. D.)--Columbia University, 1925. / Vita. "Reprinted from the Archives of psychology ... no. 76." Bibliography: p. 176-181.

Motor, visual and applied rhythms An experimental study and a revised explanation.

Miner, James Burt, January 1903 (has links)
Thesis (Ph. D.)--Columbia University. / Bibliography: p. 104-106.

The measurement of conation an enquiry into volitional processes,

McCarthy, Raphael Charles, January 1926 (has links)
"Submitted in 1925 in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the University of London."--Foot-note, p. 5.

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