ERIC Number: EJ720502
Record Type: Journal
Publication Date: 2005-Jun
Reference Count: 16
On a Test of Dimensionality in Redundancy Analysis
Takane, Yoshio; Hwang, Heungsun
Psychometrika, v70 n2 p271-281 Jun 2005
Lazraq and Cleroux (Psychometrika, 2002, 411-419) proposed a test for identifying the number of significant components in redundancy analysis. This test, however, is ill-conceived. A major problem is that it regards each redundancy component as if it were a single observed predictor variable, which cannot be justified except for the rare situations in which there is only one predictor variable. Consequently, the proposed test leads to drastically biased results, particularly when the number of predictor variables is large, and it cannot be recommended for use. This is shown both theoretically and by Monte Carlo studies.
Descriptors: Redundancy, Monte Carlo Methods, Predictor Variables, Psychometrics, Test Bias, Multivariate Analysis
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Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
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