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Table 3 E igenvalues, variance accounted for, and reliability of final PCA model

From: Actual sexual risk and perceived risk of HIV acquisition among HIV-negative men who have sex with men in Toronto, Canada

  Eigenvalue Proportiona Cumulativea Coefficient alphab
Component 1 3.26 0.47 0.47 0.77
Component 2 1.19 0.17 0.64 0.82
Component 3 1.01 0.15 0.78 0.80
  1. aproportion and cumulative variance accounted for in final PCA model
  2. bstandardized Cronbach coefficient alpha