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Parts of this article were read under the same title at the 1935 meetings of the American Psychological Association in Ann Arbor, Michigan. The research was carried on at the University of Nebraska under the direction of Dr. J. P. Guilford to whom I am glad to acknowledge my gratitude for his continued help in developing the problem. A thesis embodying the research was submitted in partial fulfillment of requirements for the degree of Doctor of Philosophy.
Accepted for publication by Dr. J. P. Guilford, April 9, 1938.
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Porter, E.L.H. Factors in the fluctuation of fifteen ambiguous phenomena. Psychol Rec 2, 231–253 (1938). https://doi.org/10.1007/BF03393218
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DOI: https://doi.org/10.1007/BF03393218