Bias of coefficient α for fixed congeneric measures with correlated errors

被引:232
作者
Raykov, T [1 ]
机构
[1] Fordham Univ, Dept Psychol, Bronx, NY 10458 USA
关键词
coefficient alpha; scale reliability; structural equation modeling;
D O I
10.1177/01466216010251005
中图分类号
O1 [数学]; C [社会科学总论];
学科分类号
03 ; 0303 ; 0701 ; 070101 ;
摘要
The population discrepancy of coefficient a! from the composite reliability coefficient for fixed congeneric measures with correlated errors is studied and expressed in terms of parameters of the measures. Use of structural equation modeling methodology is recommended for identifying cases in which this discrepancy can be large. The findings are demonstrated across several empirical conditions in a scale construction context.
引用
收藏
页码:69 / 76
页数:8
相关论文
共 25 条
[1]  
ABRAMOWITZ M, 1986, HDB MATH FUNCTIONS
[2]  
[Anonymous], 1989, STRUCTURAL EQUATIONS
[3]  
[Anonymous], 1996, LISREL 8 USERS GUIDE
[4]  
Crocker L., 2008, INTRO CLASSICAL MODE
[5]  
Cronbach LJ, 1951, PSYCHOMETRIKA, V16, P297
[6]   LIMITATIONS OF COEFFICIENT ALPHA AS AN INDEX OF TEST UNIDIMENSIONALITY [J].
GREEN, SB ;
LISSITZ, RW ;
MULAIK, SA .
EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT, 1977, 37 (04) :827-838
[7]  
Guttman L., 1953, Psychometrika, V18, P225
[8]   STATISTICAL ANALYSIS OF SETS OF CONGENERIC TESTS [J].
JORESKOG, KG .
PSYCHOMETRIKA, 1971, 36 (02) :109-&
[10]  
Lord F. M., 1968, Statistical theories of mental test scores