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Everything about Factor analysis

Statistical method

Factor analysis is a statistical method used to describe variability among observed, correlated variables in terms of a potentially lower number of unobserved variables called factors. For example, it is possible that variations in six observed variables mainly reflect the variations in two unobserved (underlying) variables. Factor analysis searches for such joint variations in response to unobserved latent variables. The observed variables are modelled as linear combinations of the potential factors plus "error" terms, hence factor analysis can be thought of as a special case of errors-in-variables models. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Factor analysisA 5-minute orientation
  2. Skim a recent paper: Global burden and strength of evidence for 88 risk factors in 204 countries and 811 subnational locations, 1990–2021: a systematic analysis for the Global Burden of Disease Study 2021Influential work since 2022
  3. Pick up a classic book: Structural Steel DesignThe most-reprinted book on the subject
  4. Read the landmark paper: THE THEORETICAL FOUNDATIONS OF PRINCIPAL FACTOR ANALYSIS, CANONICAL FACTOR ANALYSIS, AND ALPHA FACTOR ANALYSISCited 675 times
  5. Go sideways: Principal component analysisA closely related topic
  6. Go sideways: Exploratory factor analysisA closely related topic

📖 Definitions

Noun A statistical method used to describe variability among observed correlated variables in terms of one or more unobserved variables (called factors).

Noun A statistical study performed using the method.

🏆 Landmark papers (most cited)

🆕 Influential since 2022

📚 Books worth reading

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

🔗 Related topics