Small is beautiful: Implications of reliability and statistical power for testing the efficacy of HR interventions
探讨如何通过改进测量程序（如选择可靠工具）而非扩大样本量，来提升人力资源干预效果检验的统计功效，为HR从业者提供经济可行的优化决策方法。
Abstract The development of optimal human resource practices is often contingent on the accurate statistical testing of potential interventions. Testing the efficacy of HR interventions can be enhanced by taking additional measures to improve statistical power, but the traditional means of increasing power through sample size are often beyond the cost and ability of HR professionals to pursue. This article, therefore, focuses on measurement procedures as an alternative way to increase statistical power for detecting HR intervention effects. Selection of reliable and appropriate measures and subsequent instrumentation are examined as efficacious and cost‐beneficial techniques that can be employed during the planning and designing stage of a study for augmenting statistical power to optimize business decision making. © 2012 Wiley Periodicals, Inc.