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Aggression: An Organismic Variable Influencing Perception Of Horizontal-Vertical Lines, Thomas C. Dunn

Electronic Theses & Dissertations

Most people when viewing horizontal-vertical lines of equal length, judge the vertical line as longer than the horizontal line. The relationship R = f(S) has been extensively studied in an attempt to explain the horizontal-vertical illusion (HVI). An adequate explanation has not been proposed, The present study approached the phenomenon of the illusion with the relationship R = f(0). The problem was to determine if aggressiveness was a significant factor in judgments of the HVI. The Edwards Personal Preference Schedule (EPPS) was used to define and measure aggression in forty students at Missouri Southern State College, Joplin, Missouri. The hypothesis …