Data Reduction Prior to Inference: Are There Consequences of Comparing Groups Using a t-test Based on Principal Component Scores?
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DOI: 10.1111/biom.13159
Abstract: Researchers often use a two-step process to analyze multivariate data. First, the dimensionality is reduced using a technique such as principal component analysis, followed by a group comparison using a t-test or analysis of variance.… read more here.
Keywords: principal component; using test; data reduction; test ... See more keywords