Output rates among butter wrappers: I. Work curves and their stability

Abstract

From investigation of pattern, distribution, and stability of output rates of 16 butter wrappers over a 2-week period, the following conclusions were drawn: Individual daily work curves vary greatly and do not show any constant, predictable patterns except for the initial warming-up period. Group trend lines are found to be stable and thus may be used as criteria for validating variables. Work curve analysis by correlational techniques is advocated for wider application to research on work patterning. (PsycInfo Database Record (c) 2025 APA, all rights reserved)