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A Simple Distribution-Free Test for Trend in One- Way Layouts

Baruch College, C.U.N.Y.

Behavioral researchers are often interested in testing for trend effects in completely randomized designs. Since the usual analysis of variance procedures were designed for testing against more general alternatives, significant trend effects are sometimes undetected. For those situations in which the researcher desires to test for trend a distribution-free test procedure developed by Puri provides a suitable substitute. This paper then describes the simple but highly powerful Puri test. Critical values are derived and a schematic diagram is given so that a computer package could be implemented. In addition, an application demonstrating the usefulness of the technique is presented.

Educational and Psychological Measurement, Vol. 38, No. 4, 905-912 (1978)
DOI: 10.1177/001316447803800409


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