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Effects of Verbally Labeled Anchor Points on the Distributional Parameters of Rating Measures

Office for the Evaluation of Teaching, 3600 Cathedral of Leaming, University of Pittsburgh, Pittsburgh PA 15260, U.S.A.

Curtis L. Gibson

University of Pittsburgh

The hypothesis was examined that the negative skew found in most distributions of performance rat ings is a function of the verbal labels used as anchors. When verbal labels quantified on the basis of the range of real-life performance were employed, distri butional parameters (means, skewness) were affected. Typically used sets of labels were shown to be more negative than believed, thus tending to force responses toward the high end of the scale and thereby contrib uting to negative skew.

Applied Psychological Measurement, Vol. 8, No. 1, 49-57 (1984)
DOI: 10.1177/014662168400800106


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