It is time to bury the Spearman-Brown "prophecy" formula for some common applications

被引：23

作者：

Charter, RA ^{[1
]}

机构：

[1] VA Long Beach Healthcare Syst, Long Beach, CA USA

来源：

EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT | 2001年 / 61卷 / 04期

关键词：

D O I：

10.1177/00131640121971446

中图分类号：

G44 [教育心理学];

学科分类号：

0402 ; 040202 ;

摘要：

The restrictive assumption of classical parallelism for the Spearman-Brown formulas makes them obsolete when the two-part alpha and coefficient alpha formulas can be used. The alpha coefficients require the less restrictive assumption of essential tau-equivalence. Even small reliability differences produced by the Spearman-Brown and alpha coefficient formulas on the same data can result in large applied differences.

引用

页码：690 / 696

页数：7

共 23 条

[1]

Allen M.J., 1979, Introduction to measurement theory

[2] Testing the equality of independent alpha coefficients adjusted for test length [J].