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Cary Robb Jensen

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Publications by Cary Robb Jensen (bibliography)

1988

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Jensen, Cary Robb, Anderson, Loy A. and Mullen, Joe (1988): Determining Perceived Traffic Sign Dimensions with Multidimensional Scaling. In: Proceedings of the Human Factors Society 32nd Annual Meeting 1988. pp. 928-932.

“The evaluation of current and potential traffic signs is necessary in order to ensure that the signs are effective. Laboratory studies are an important first step in evaluating current and potential traffic signs in order to minimize the risk and expense associated with field research. This paper describes the application of multidimensional scaling to traffic signs, a method that appears to be well suited for determining perceived traffic sign dimensions. In two studies subjects judged the similarity of all possible pairs of 16 traffic signs. Three interpretable dimensions were found. These dimensions, in order of extraction, were color/content, message form (pictorial vs. verbal), and shape. The validity of this research technique and the limitations of these research results are discussed.”

1987

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Jensen, Cary Robb and Anderson, Loy A. (1987): Comparing Three-Dimensional Representations of Data to Scatterplots. In: Proceedings of the Human Factors Society 31st Annual Meeting 1987. pp. 1174-1178.

“Jensen (1985) described a method for presenting data in a three-dimensional format that would typically be presented in a scatterplot. The present paper compared these two methods of presenting data. Twenty-four subjects, all of whom had completed an undergraduate class in statistics, were presented with sets of graphs depicting bi-variate data that varied in correlation from about 0.0 to about .99. Three different data groups were depicted as both scatterplots and as three-dimensional graphs. Subjects rank ordered these sets of graphs on the basis of the degree of relationship present. For each set of graphs the order the subject chose was compared with the known order using Spearman's rho. In the early trials, performance was better with the scatterplots, but by the last trial there was no difference between presentation methods for two out of the three data groups presented. The implications and limitations of these data are discussed.”

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