Influential Observations in Principal Factor Analysis
- 1 September 1989
- journal article
- Published by Cambridge University Press (CUP) in Psychometrika
- Vol. 54 (3) , 475-485
- https://doi.org/10.1007/bf02294630
Abstract
We propose a method for detecting influential observations in iterative principal factor analysis. For this purpose we derive the influence functions I(x; LLT) and I(x; Δ) for the common variance matrix T =LLT and the unique variance matrix Δ, respectively, in the common factor decomposition Σ =LLT + Δ. A numerical example is given for illustration.Keywords
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