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Table 3 Summary Unidimensionality Indices for CASP by Study Sample

From: Bifactor model of the CASP-12’s general factor for measuring quality of life in older patients

  SHARE W6 Sample TILDA W3 Sample
Uni-Dim Indices
 ECV / ECVNew .74 / .74 .64 / .64
ω / ωHier .92 / .80 .93 / .77
 H .92 .92
 FD .96 .92
 PUC .55 .53
 ARPB .11 .44
 IECV (# items > .80) .70 (5[4,9,10,11,12]) .63 (5[3,4,7,11,12])
  1. Note. ECV estimated common variance