Initial Scale Development: Sample Size for Pilot Studies
Initial Scale Development: Sample Size for Pilot Studies
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DOI：
10.1177/0013164409355692
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发表时间：
2010-06-01
影响因子：
2.7
通讯作者：
Brooks, Gordon P.
中科院分区：
文献类型：
--
作者：
Johanson, George A.;Brooks, Gordon P.
学者和顾问经常建议进行试点研究，以解决各种问题，包括初步规模或工具开发。具体的问题，如项目难度、项目辨别力、内部一致性、响应率和总体参数估计，都是相关的。不幸的是，在现有的文献中，很少讨论如何为这些类型的先导研究确定合适的样本量。本文从特别是与仪器开发有关的角度探讨了先导研究样本量的选择。对于研究人员在初步规模开发的先导研究中应该使用多少参与者，我们提出了具体的建议。
Pilot studies are often recommended by scholars and consultants to address a variety of issues, including preliminary scale or instrument development. Specific concerns such as item difficulty, item discrimination, internal consistency, response rates, and parameter estimation in general are all relevant. Unfortunately, there is little discussion in the extant literature of how to determine appropriate sample sizes for these types of pilot studies. This article investigates the choice of sample size for pilot studies from a perspective particularly related to instrument development. Specific recommendations are made for researchers regarding how many participants they should use in a pilot study for initial scale development.