Message-ID: <1225021407.16176.1561009858612.JavaMail.confluence@encore> Subject: Exported From Confluence MIME-Version: 1.0 Content-Type: multipart/related; boundary="----=_Part_16175_1064295610.1561009858610" ------=_Part_16175_1064295610.1561009858610 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Content-Location: file:///C:/exported.html Issues Related to Performing Exploratory Factor Analysis

Issues Related to Performing Exploratory Factor Analysis

This page is not about the theory of exploratory factor analysis= . I do not care too much about "theory", and I hate reading math = formulations in textbooks and papers. What I want to know are how to perfor= m an analysis and how to interpret the results. Specifically, when performi= ng factor analysis, I want to know: which extraction methods to use? how to= determine the number of factors to extract? which rotation method to use? = how to calculate factor scores for subsequent analysis? how to interpret th= e output of SPSS? And, most importantly, what are the justifications of mak= ing certain decision.

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This page is only a summary of ideas I've got so far. Or, I would say it= is only a stack of various information. It is not my answers to the above = questions. I do not think there are concrete answers to these questions bec= ause statistical literatures on these issues are disputed.

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Which Matrix to Interpret?

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• Harris (1985a, 1985b) has argued that factors should not only be scored= , but also interpreted on the basis of the factor score coefficients rather= than the pattern or structure coefficients (Grice, 2001a, p. 78).
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• The book in office says only structure matrix is of interests.
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• The webpage says both pattern and structure matrix should be interprete= d.
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Re= ferences

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• Grice, J. W. (2001a). A comparison of factor scores under conditions of= factor obliquity. Psychological Methods, 6, 67-83.
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