A summary and critique of methods of measuring "warming up."

Abstract

The Robinson-Heron method of measuring "W U" and the Amberg method of computing the average value of practice effect are examined. The first method may mask small amounts of W U, and in the second method W U may be spurious because of the greater influence of practice effects at the beginning of the period and less at the end. A direct method of measuring W U is considered by comparing directly the first and last halves of work on a formboard during periods of "well marked and relatively flat plateaus." More W U is found by this method than by the Robinson-Heron formula. (PsycInfo Database Record (c) 2025 APA, all rights reserved)