Comment on Anderson and Cuneo's “The height + width rule in children's judgments of quantity.”

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The validity of the height + width rule for judgment of area, as proposed by N. H. Anderson and D. O. Cuneo (see record 1980-22999-001), is questioned on statistical-methodological grounds. A detailed consideration of rating scale methodology as employed in functional measurement indicates that there are intimate relationships among the stimulus set, rating scale, stimulus end anchors, rating-scale-response variability, and sample size that determine the sensitivity or power of a particular factorial design to reveal the form of the integration rule. Anderson and Cueno's positions on the concepts of conservation, centration, and compensation are also considered. (6 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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