In:
Perceptual and Motor Skills, SAGE Publications, Vol. 89, No. 3 ( 1999-12), p. 899-902
Abstract:
The biasing properties of Cronbach alpha in fixed-format tests were examined in a Monte Carlo simulation under conditions of varying shapes of data distribution. The distributions of data examined were normal (3, 1), uniform (1, 5), skewness biased, Kurtosis biased (leptokurtic), and U-shaped. Analysis indicated that alpha was significantly different from zero under the normal and uniform distributions; however, negative interitem correlations and marginal SDs might have been responsible for that effect. The magnitude of alpha was negligible so it is suggested that researchers can use alpha with data having various distributional properties.
Type of Medium:
Online Resource
ISSN:
0031-5125
,
1558-688X
DOI:
10.2466/pms.1999.89.3.899
Language:
English
Publisher:
SAGE Publications
Publication Date:
1999
detail.hit.zdb_id:
2066876-4
SSG:
5,2
SSG:
7,11
SSG:
31
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